It doesn't. I already showed two ways to do grappling well that are simply using base class abilities. People are pretending the most extreme case is the only build that grapples well and it's extremely silly. Might as well claim Battlemasters are the only Fighter capable of competitive DPS or something.
No.
We shouldn't have to rely on Feats for stuff currently built into various classes.
Also, making the a tactical option crap-by-default, then forcing you to spec into a Feat to make it work even "okay" is absolutely terrible game design, and it was one of the most major flaws of 3.XE. 5E almost completely corrected it, so going back to 3.XE design here would be truly awful.