We just need to give this baby more time. I have 100% confidence this will grow on the Smash community. I got my friend TonyGuacamole (a guy who likes Brawl+ btw) to see why this hack is amazing.
I'm trying not to be biased, but I can really see Mario being a top tier threat in BBrawl. His KO power is among the best of the best in this game, even more emphasized by the reliability and ease of landing his KO moves. Mario is REALLY STRONG in BBrawl. Basically he's a character that has a good, if not great option for everything. His one weakness is low range, which can be compensated for by his improved fireballs, situational use of Cape and FLUDD, and his incredibly long ranged F-smash. While his recovery may be predictable offstage, Mario greatly benefits from the removal of Recovery Carry Over lag, and his weight makes him considerably more bulky than characters like Marth, Metaknight, and G&W.
To give you an idea how amazingly strong Mario is, his Up-smash KOs DDD at 127% on FD. Mario's D-smash likewise KOs about 3% higher than his Up-smash (from the center of FD), and becomes extremely scary to deal with when you are near the edge due to its gimp potential. Even BETTER for Mario is his improved B-throw, which is very close in KO power to Ness's B-throw. It easily KOs Bowser at around 125% or so, and this gets even better when you factor in the ease of getting a grab through Mario's very good Jab cancel. Mario in short has some of the best KO options in this game, able to kill anyone in this game before they live past 130%.
I should also point out, Mario's KO moves are relatively safe. His D-smash in particular is a safe attack on block, as it pushes his opponents away very far. Mario's Up-smash is one of the better out of shield attacks in this game and also has relatively low ending lag. Mario's F-smash has some of the longest range in this game when reversed (outranging Ike's F-smash). Mario can Jab cancel easily into a grab most of the time.
As for Mario's F-smash, Mario's other KO moves have become so good that I find this attack is a lot more useful as a long-ranged damage dealer.
But anyhow, Mario has everything. He has a good projectile. He has the Cape which reflects projectiles, changes his momentum, gimps people, and really adds to his mixup game. His Neutral air is a great combo breaker, out of shield option, and gimp tool. His D-air is also great out of shield, it starts combos, juggles, and is a GREAT shield pressure tool. His FLUDD is a wacky spacer. Mario's Up-B is a great out of shield attack. Mario can combo his opponents pretty easily, and with his increased KO power, now he can kill them very quickly.
Mario ****ing rocks.