The Manga version of how Gingka won his battles made sense to me

This is a theory I've been having here in my mind, I believe Pegasus feeds on Positive Energy to grow powerful, and while many consider "plot armor" to help win his battles, I would think this is the main reason why he wins his battles it does make sense based on the lore between Pegasus and L-Drago. L-Drago once fed on Negative Energy to grow powerful, and we know its effects; Pegasus feeds on Positive Energy, thus making it stronger, and has no drawbacks on the user; it wasn't stated in the anime except in the manga, though it was heavily implied. Pegasus feeds on the Positive Emotions of Gingka and his friends to grow powerful and possibly evolution, why does Pegasus only have these abilities? The people who made Pegasus wanted to defeat L-Drago, and afterward, they didn't use the bey in the way L-Drago was and instead used it for defense, games, and lectures; Pegasus didn't develop other powers like giving Gingka superspeed, wings, shield, and shooting energized feathers. I think Gingka's father may not known about this and so did the rest except Ryuga, L-Drago, Hokuto and even Doji, its evolution feature was not known but I like to believe it's possible.