It's true. When the original WBR was formed, we spent a great deal of time working on just the gravity settings, knowing that they'd be the foundation of everything else to come. We focused solely on tweaking Almas's gravity codes, so that they would be exactly where we wanted them.
Not to critize harmless inquiries, but I feel like few people understand how deeply reworking the gravity could affect the established balance of the game. Gravity settings are used in calculating knockback, and also interact with launch angles. Simply put, increasing gravity across the cast changes the way moves treat those characters when they get hit. The change affects the balance of how versatile characters' recoveries are. Hitstun would need to be tweaked all over again from the beginning to find just the right balance of how much to give. Throws would have to be reevaluated. Simply put, we would have to start the project over, and reevaluate every single change we've implemented so far. Then we'd still probably have to go back and look at things we didn't change to see how they were affected.
Yes, Brawl+ is still very floaty compared to Melee. But you should try it compared to vBrawl. There's a much greater diversity of falling speed now, and it's maybe not what some people were looking for, but it's too late to change it for a serious tournament build as close to being finished as I'm hoping GSH2 is.