Timeshare isn't for everyone, even if owning it gives you a great deal. It is an ongoing, regular commitment to paying for vacation lodging, and that's not something everyone wants. What's more, the lodging is only part of the story--and the only part for which owning delivers savings. You still have to get there, you still have to eat while you are there, and any entertainment expenses get added on as well.
This is one of the reasons I consistently advise people
not to make purchase decisions based on passing it down to their kids. There's a good chance the kids won't want it, no matter what it is.
On the broader question about
DVC vs. other timeshare systems, and how (and to whom) they are marketed: From where I sit, they have a lot more in common than they have differences. For starters, most timeshares are sold, not bought. Usually, it is an aspirational lifestyle purchase. It is wrapped in the guise of "saving money" but that's largely to give the buyer justification to make this aspirational purchase that they want because of the way it makes them feel.
DVC likes to position itself as very different from other timeshares. That itself is part of the brilliance of the sales pitch---"We know timeshare has a bad reputation, but we aren't like all those other things!" But, when you look under the hood, it really is just another timeshare.