I agree with Snap, what are your reasons for changing him?
Two words: Air camping. Keeping Wario the way he was would A. be doing the same thing Brawl+ did (which isn't good mind you) and B. He could do very silly things with the way he was. His old Dair encourages him to air camp, just DJ and retreat with it. Uair was both a juggle move AND a KO move that did 17%. While balance isn't on our minds right now, Wario's old playstyle was outright (IMO) dumb. If he was left alone, every single thing (except physics) he would still play a very dumb way in tournaments.
You may not like it that we changed him, but the big reason is because he was such an air camper in vBrawl. That's the main thing he has going for him in that game and why he's relatively high on the tier list compared to many other characters. He retreats until he can get in, dealing damage and then finally getting a small combo. Now imagine in PM, leaving Wario alone would facilitate him to still play the same as vBrawl only amplifying his damage output
and combos.
The reason people seemed content with Wario before was because... he was great, however, for all the wrong reasons. He played like a worse Jigglypuff (worse because of range), mind you that sounds good in your head but in the actual setting it really isn't fun to play against.
I'd hate to bring Brawl+ into the discussion but I will. In that game, it was decided that Wario was fine, that he didn't need any changing at all because he (guess what) fit right in! It buffed his combo game and removed his main weakness: grab releases. Nobody really played Wario until Ally was picking the game up and videos showed (to me) that Wario was in dire need of changing but, unfortunately, that never came.
I also used Wario a lot when I played vBrawl. I understand the character pretty **** well and felt that he shouldn't play the same way he does in vBrawl because it's not him at all and because it only leads to problems. You couldn't balance the Wario before this new one without nerfing his aerial mobility. Which as I recall everyone in here was like "Don't change his aerial mobility! Please don't!" Well, we listened and we didn't change that, instead we changed his move set to decrease the amount of air camping he does.
I could go on and on about this, but the fact remains that Wario would be dumb if he was reverted back to how he was at Apex. In friendlies that may seem fine but when you consider a tournament setting when people are playing to win, they
are going to exploit the hell out of his aerial mobility, even if there are so few Warios out there.
As for the bike change, it was my personal opinion that the only way this was going to work is if the bike was gone. Shoulder Charge won't work on Fsmash, it'd be way too spammable and weird as a smash attack (plus you would lose the armor frames on it). The bike also facilitated long lasting life which isn't really fit in a Melee environment, is it? The only character in Melee who can recover from absurdly far is Jigglypuff, but she's light as hell. Wario is not light, he's a bloody heavyweight, why does he need a bike to live for even longer? It doesn't make sense given the contextual environment and other characters.
Maybe it will change down the line, I don't know, but these are the thoughts I had. He needed a revamp, I'm sorry you didn't feel that way back at Apex but that's because he hadn't been touched at all at Apex.
This is all I'm going to say on this.