Excellent points! I do agree with all of them. I am glad that all those things are being discussed in multiple forums too, it's a great way to get Larian's attention I hope. =)
Jumping, shoving, throwing, high ground, "backstab" and reactions are widely discussed topics, but I would also add that monster types and even summons and wild shape forms do not use the stats of the PHB. In many cases, perhaps that's fine, but I am also thinking that it does screw up some things aswell, balance-wise.