Originally Posted by
WallStreeter
It’s a compromise which ultimately doesn’t work. Jean with the Phoenix itself would have a lot more to deal with than the Shi’ar. She’d have to deal with the Avengers, Asgardians, Galacticus, Dr. Strange etc.
Previously as used by the Xbooks Phoenix was a one trick pony only known to the Shi’ar and XMen.
I don’t like everything he’s done with it but I think Aaron made it a power to be known and feared across Marvel. This sets up Phoenix/Jean Grey to ultimately be a starting character instead of a background character.
The Avengers are more or less equal to the Imperial Guard thus they'd fall like hot rocks -- and, unless the Asgardians and Doctor Strange decided to gang up on her -- Jean, while siphoning psychic energy (sans the Phoenix Force), would be still be able to hold her own.