Most hosting supplies infinite bandwidth, so that’s strange. Wonder what the real reason is.
I bet it’s to make “more money” but they don’t realize they’d make more money (sales) if they allowed us to own the animation across multiple characters.
So strange when people lose a large amount of customers over making a few extra dollars on the ones they have. I guarantee there are more lost customers because of this than the amount of current customers who repurchase identical animations, and the former pay more money…lol…
If you could retarget the same animation across infinite number of characters, I’d probably purchase the entire store. Instead… nope! Not a single one for me.
Also, I have sent emails to Mixamo TWICE so far with inquiry to custom animation work like their website says they do, but both times never received even a basic reply. The first? It’s been months. The second? It’s been weeks. Whoever checks the mail to reply to inquiries about additional animations or custom work is not doing their job. My question was VERY SIMPLE, “How much would it cost for you to make a two-handed mining animation?” You know…as I might be willing to pay extra to see it hit the website sooner than later.
After a few weeks of no responses, I went to the forums and asked the question, as whoever works there responds VERY fast and is VERY informative. Emails? No. If you have a question, go to their forums.
It is simply amazing how much money and so many customers some companies lose by trying to squeeze that extra penny out of their current ones, or by just simply ignoring the emails.
I remember when Torque3D just released with a partnership with a 3D modeling company, I made an inquiry to that company to invest up to $10,000, and the person replied aggressively because they didn’t understand what I was asking. Yet… my email was EXTREMELY detailed and specific. I was extremely patient with him, replying immediately to every email, while making sure my questions were very simple to understand in addition to detail. I was very professional and utterly serious in my emails, but after a few emails back and forth he failed to understand the simple question (I literally asked in one email “What is the average price for a mesh of [attached] quality?” that exact sentence) and he must have got frustrated because he told me that he didn’t believe I was serious and I was a child.
So I ended up contacting the CEO who suspended him for 2 weeks (no pay) and then gave me a few sentence answers to my question(s) as well as a lengthy apology. He understood what I was asking and replied with a simple answer. Needless to say, they had already lost me by then. I told told him I’d think about it, but I ended up deciding against them. Seriously, why in hell would I ever pay a company $10,000 when their employees don’t even know the difference between a mesh and a texture? Especially when they treated me like a child. It does not make any sense, as I have been told on several forums my posts are often clear and details, and I’ve been told I am very intelligent. (I was afraid I was the stupid person when talking to this employee, and I questioned if ‘mesh’ was even a 3D modeling word.)
I was amazed at the suspended employee’s stupidity and inability to understand the simple question of “Here is an example of a 3D model, how much minimum would a mesh of similar quality of the same model be?” and how simple it was for the CEO to reply, “Prices range from $300 to blah blah…” but how incapable the employee was.
Why is it so hard to get an answer to a single sentence question with a lot of these major companies? This may only be the second time, but I almost always have to hunt down multiple employees or the person in charge just to get a reply to a very common question. Indie contractors answer almost instantly, and some to GREAT length and detail. That’s why I decided to save my money for both 3D models and Animations by doing a lot of the work myself, and outsourcing the rest to Indie Artists.
It’s too late now, but I actually wish I got better replies from Mixamo. I actually wanted to go with them, and even if I only was able to have one animation per purchase (having to pay more for different characters of the same animation) I actually still think I would have went with them.
Instead, I’ve already spent my $300 budget 
If they’re too busy to reply, they’re too busy to make new animations.