Why? Their monetization strategy so far has been brand advertisement interspersed as vertical video ads between Stories. This doesn't require any particular kind of content, only that they can hold your attention for 10 seconds or so while they show you an advertisement.

And their monitization strategy so far has led to larger losses than expected, less revenue per user, and slower user growth.

It might make for a better user experience but that's not good for a free service

Good point but I think the solution is not to gut their good user experience, but to figure out better monetization strategies. Because better user experience is about the only thing keeping them in the Game.

Well yes, they would likely keep their current one while expanding into new areas.

I'd argue though the only thing keeping them in the game is network effects and fighting that fight vs IG is... going to be challenging.