Zues has a lot from pm because as a concept, they took pm physics and combined it with minus Movesets. The concept of minus doesn't involve doing that.
Why do you think pm feels more broken? Just curious.
Don't know why it's a problem but double posting is bad for some reason.
Double posting actually isn't terrible, but the idea behind more than one post is a spammer trying to make sure everyone reads what they're saying so they post like 100 times [taking up like 4 pages with nothing but the same image/words over and over]. We really, REALLY don't want that, so we just say, "If you want to post something, post it once."
PM 3.02 at times felt more broken than Brawl Minus [3.02 Mewtwo vs Pit could honestly have been a Minus-ish fight with the warping, low-lag projectiles, great recovery, cool combos, and powerful finishers, though it would probably count as a bit tamer and more technical, although technical =/= good by any stretch.] 3.5 is toned down, but Ike's ability to literally cover all tech options from halfway across the stage by reacting with JC grab [or reading with usmash] thanks to QD is pretty nuts. He can also wavedash out of it [which is useful for QD fakeouts, which I think Minus doesn't have on the ground] and unless he can grab both directions out of it in Minus, he can reverse JC grab in PM as well.
Falco's shine dair combos also always feel broken, which our Falco technically lacks [utilt/usmash/dtilt are slower than shine]. Some other characters have some cool stuff as well (Snake's tranq, for instance, though I'm not saying I want the tranq in Minus).
Other than that, I'm not really sure.
For Falco, was considering an idea [as a suggestion] for making Falco's shine like Melee (frame 1, launches upward, JCable), but pressing A while holding B (or quickly enough during startup I guess, maybe in the first 4 frames or something) makes him kick it, but I realized Falco is already really really good and the dev team would probably say he doesn't need this.