Shows change directions all the time when a new showrunner or writers comes into the fold and sometimes undoes previous storylines or tries to forget them altogether. The writers should have kept Tommy gone when he initially left in OG Power instead of bringing him back and placing Ghost's murder on him. They should have never had that beef in the first place because they should have never wrote Tasha pinning the murder on him. They literally only brought him back to NY because Tasha pinned Ghost's murder on him.
Crossovers are typically done with the lead characters of the show (SVU/Organized Crime for example) and Tommy has no reason to interact with Davis or any of the other characters on the show as he doesn't know them like that.
I mention before that the Saxe shyt was stupid and illogical as it made no sense from a character perspective whatsoever and completely overlooked the fact that Tamika knew
My guy you said a whole bunch of nothing. You said they needed to end the beef, why did they need to end the beef?
Again even if they wanted to do crossovers, they didn't need to end the beef. They could be dealing with other characters and have no direct interaction or they could continue the beef across series. Unless you are on the trash writing team it's no reason to try and defend the garbage writing.
Everything you said about season 1 is meh to me, It happened. But Season 3 Tommy, Tasha, Saxe was pure garbage and bad writing.