Being so stingy with feat picks is one of 5e's biggest weaknesses. Feats are FUN. They're more fun than ASI's that just change some numbers. Feats give you new possibilities and unique things to do. They help define a PC.
So yes, any change that allows more feat picks would be a good one.
I wouldn't worry about game difficulty becoming too easy if PCs get extra feats. Character building is a separate issue. Difficulty can and will get adjusted and tweaked regardless.
And I really hope they separate Feats and ASI's again in the next edition of D&D.
