ironically his performance was the least effected on his team by tejo switch
he's not tejo merchant... but his team is
JonahP has been more than fine on Breach/KAYO in the past. The performance against PRX is definitely one of his worst to this day. Also, Trent was pretty solid on Sova/Fade before Tejo. His agent knowledge is pretty amazing but the rest of his team seemed to be getting diffed by one or two players consistently.
I think G2's comps are fine. A lot of their mistakes seemed to be more minute rather than a macro issue such as how an agent's util affected their plays. Though, if you really wanted G2 to shift their comps, I would put JonahP on Viper, an agent he has had success on especially on Lotus, and have Leaf play Vyse/Killjoy/Cypher on more maps. G2 ran these sorts of agent comps last year and it offered some stable success despite their duelist being mid-tier in quality.