To be honest, some changes aren't even bad. It's just others are REALLY BAD, so it overshadows other decent changes.
Another Race Walk event for women is needed. High Diving is fine, I wouldt mind it taking Artistic Swimmings spot tbh.
Ligthweigth rowing adds nothing to the games. Coastal rowing is a developed and entreteining sport completely different to anything already on. I support that change. Same thing with Sailing. I get people not liking "mixed events", but it kind of makes sense in Sailing, and it opens the door for other exciting boats.
Same thing for Mixed Skeet or mixed time trial, I can live with it being in the games.
Aything else, garbage.