Lets go over the list of activities for you. I will highlight the parts where, anyone and everyone, can compete.
(Purple because its for all the 7's...just incase you want to have an issue with that...)
Personally, I see more green than black. We have Halo 4 and CoD Ghost events. So, people without 360 Ghost/Halo 4 are excluded from 2 events...And some might be excluded from one and not the other. So, are you going to not participate for the guys on BO2 squads who do not have a special tournament event? We surprisingly have more of them then we do X1 people.
So, to be honest, X1 will end up with the main Spirit Week events, but only after it becomes the dominant console. A majority of the community does not have the X1 yet, so to put a main event on it would be to exclude the majority.