This is definitely a step in a good dieection, but why not have the battery user replaceable by unclipping the back cover? My last phone that had such user remo

This is definitely a step in a good dieection, but why not have the battery user replaceable by unclipping the back cover? My last phone that had such user removable battery was Samsung Galaxy S6 if I remember correctly. It was a great smartphone. Why not come back to it? I can understand it compromises waterproofing, but for a non-waterproof phone? Why not?