It's definitely poor synergy. Her MCU counterpart may be a mutant, but she's not an X-Man. The Marvels ends with her recruiting Kate Bishop. It's pretty much the Young Avengers with the Champions' origin and leader (who knows which of the two names they'll use, as the team will certainly be a combination of the two, with Riri and Cassie certain to be in). It would've been better synergy to relaunch Champions.
It's not, Miles is written by Cody Ziglar.