I don't understand how battlers can be so lyrical in battles but make music & dumb their shyt down to sound like 95% of the mainstream artists
That's because battling is the last platform where you CAN be lyrical, and have sustained success. It has replaced the "underground rap" scene.
They can't sell records rapping like they do in battles, they'd just be another dated sounding underground artist.
Charlie Clips, Bigg K, Cortez, Math Hoffa, Head Ice.... all these guys can make good music, but if you took all their joints and mixed them with tunes from 2000-2005, they wouldn't sound out of place. Rain isn't a battler, but his music is kinda dated too. I liked a lot of Big T's Appetizer mixtape, but again that was 2010 and his sound was dated by mainstream standards. Tay Roc, Rich Dolarz... their best song offerings are dated sounding.
Then you turn on a Shotgun Suge song and you think "WTF, is this the same guy?". But his music is popping more than all the battlers I just named.
Random, but not so random. Goodz makes consistently bad music. Not sure if I've ever enjoyed a Goodz song. It's bizarre, you'd think he'd have his own sound.