Personally I don't have a problem with any of this.Marvel has New Avengers # 16, with the whole-sale slaughter of Alpha Flight and Mailman Mike given the "Guardian" suit.
Marvel has "Heather" blasting the brains out of her cousins (volume 4) and "Mac", Aurora, Judd, and Snowbird (!) robbing a bank.
Marvel now has Carol Danvers leading Alpha Flight...
I much prefer it to Volume 3 and a lot of Mantlo's stuff.
Again, personally I'd say that the team is the most alive and prominent than it's been in decades.It seems to me, and I may be wrong, that Alpha Flight is already gone.
I may be in the minority on that though.