Oh no, that's not true. He likes solo and tag just fine, as long as he's not playing "pros", aka folks he knows will beat him. Hence, the "No Pros" title in his lobby.
Of course not, lol. He got hype because he mashed out a win on me in tag. So I asked for a fight is solo, he set it to 5 rounds, infinite time, and largest health in solo. I picked Ryu, whom I'm still learning. He picked his main, Alpha. 5-0.