so, now that previews have revealed the X-Men getting involved in A.X.E. because the Eternals suddenly decide Mutants are an off-shoot of the Deviants...
the comics are setting a precedent the MCU can then follow, to explain that their Mutants are an off-shoot of their Deviants as well... Deviants who either cross-bred with humans, or just evolved to more closely resemble us.
it sets up a perfect excuse for them not appearing in the MCU timeline before now: they were aware of the Eternals, and chose to stay in hiding until the Eternals left earth and/or died, so as not to attract their ire/attention.
this idea fits with how the Deviants were depicted in the film, and suggests that Kro wasn't the only one who learned to walk upright, speak, gained powers, etc
discuss