I used to be in the same mindset of "droppers are for big travel bikes" until I started using one. I put one on my trail bike last year and now I'm wanting one on my SS and my 29+ bike. To me it just seems odd that they would make it relatively modern in it's geometry but then limit it to not having a dropper. I know that I'm not alone in scratching this frame off of the list if that's the case.
I understand your point. Different Riders, different needs.
My answer on the bend is that If you make a very short chainstay you end up having to bend the seat tube to allow for tire clearance. I have even seen bikes with bend seatpost matching a bent seat tube.
We can't have it all. Big tires, big chainrings, dropper and short chainstay. I will trade a short chainstay and room for a 2.3 tire for no dropper
The issue is that the Chinese have no R&D so they just clone the frames and we end up with fewer choices, just a bunch of the same.