i just don't know, MK may have a bigger audience but some of the material in the comic that makes supreme power supreme may be lost becuase of the younger imprint.
they can do whatever they want literally without people/critics to complain or moaning because it's too much. it also allows risqué themes, which you relly can't do in regular comics or marvel knights as it may not be prohibited and as marvel kights is intended for teenagers some serious issues may be considered only for max readers as it's too much for the considered marvel knight imprint.
really apart from that having a marvel max imprint means you can do whatever you want touch any matter, explore what genrally is classed as muture.
marvel knights really is limited. it's just like the movie rating system you got 15 than you got 18. But i don't know what the future holds which is why i'm still wondering, i just pointed out in my posts what could happen and what really is max to knights
would that mean that the Supreme Power characters become part of the main MU? .... if that happened it would only be a matter of time until they meet the Squadron Supreme (even though SS are technically in another universe.... they always find a way ... or an excuse.... to cross over)
JMS hadn't really been utilizing the ADULT nature of the MAX imprint, thus I think the move to MK is fine, it provides wider distribution and marketing.