I don't think there is a good reason. It's an interesting ability for a model. I can see the appeal why people are interested in much the same way I can understand why people climb mountains. Wouldn't wanna do it myself but I can see why you like it kind of way. For me this falls into the category of "the general public doesn't need to have access to this." I get mad when I hear people talk about it in terms of what is and isn't allowed in it. "And then I tried to put a light saber in it and that was okay but I couldn't make me into Super Mario." You just created enough heat in a server farm that will kill a polar bear, that needs to be cooled with future drinking water we need to desalinate, and you have huffed some more air in the hyped up bubble economy surrounding so-called AI. All so you can see where the model draws the copyright line? And if you think that I was modest in my hyperbole, you'll probably agree with me when I say in a similar spirit that we as a species deserve to eradicate ourselves off this planet.
The so-called AI peddlers have the same problem as news peddlers online. It's fucking hard to turn users into paying subscribers. And they need to turn a profit at some point. It's the merciless mechanics of capitalism that dumps all these models on an unprepared general public at dumping prices. A drive to increase shareholder value above any other consideration. It's time to change that.
And I'm not opposed to this model existing. Research it, fine tune it, offer it for the actual cost you're running in the background plus a bit of a profit margin. And when it costs $207.40 per month to make these brief videos, I'd be okay with that. It would price out enough users not to undo any of the insufficient climate saving measures we as a species have already implemented.
"Free healthcare" doesn't exist. You can spread the cost differently. Either you pay what you need - which could be a lot - or you pay less but consistently into a big pool along with other people and then that pool money gets distributed to health care providers. That smaller but regular contribution will go up if everybody goes to see their family doctor unnecessarily so there is a bit of a feedback gauge. It isn't all milk and honey in socialized health care.
No matter what system your country uses, you will have heard about the same problems. Not enough staff, lacking qualifications, people being overworked and underpaid - in particular on the lower rungs of the ladder. That leads me to think that the staffing levels are about the same. Maybe one system has more work hours invested in preventative care while the other needs more in mop-up crews for those who fall through the cracks.