As long as she doesn't continue to be Boba Fett 2.0 we're good.
Difference between the two is Bob was a sleeper hit and not intended to be so, Phasma is on the fucking poster, in all the interviews, a part of most of the trailers, you cannot do that and be a bait and switch
Phasma is the on the poster, characters with more screen time are not, if it was deduced that was just to sell toys Disney would be fighting a PR nightmare, especially given how they are trotting her as a symbol of roles females are not getting in films.
"Hey here is our new character, a strong female character who isnt defined by her looks or relationships, she is a badass...but shes only in the film a combined 15 seconds and never fires her gun...girl power"
Nope, not buying it, big role in 8