More interesting to whom? CRUD apps are still capable of creating massive value for users by solving overlooked problems. It's a big deal that designers can now build them without the help of any professional engineers.
It's like what MS Access did to databases years ago. People still need databases, it's just the low hanging fruit is covered (poorly) by Access, and then after the badly designer database has been in production for a few years and grown, some sorry DBA/dev gets to charge a crap load to fix it.
More interesting to some engineers of course!
More interesting to those of us who take great delight in solving harder problems.
Just because a problem is technically challenging doesn't mean it's overall a more important or harder problem than one that only requires basic CRUD functionality. Airbnb is a great counter-example.