The realist answer? BKV wants to write something for Marvel that people in large numbers will actually READ. Watch. He can produce A+ work for RUNAWAYS and THE OATH, but even a phoned-in LOGAN story will garner higher numbers. I mean, WOLVERINE ORIGINS scores decent sales yet hardly anyone claims to enjoy it too often. Not just here, but other boards, too.
Not to say it won't be good, but usually, Mediocre Wolverine stories will outsell better stories with lower rep characters.
I will probably check it out, although, damn, he couldn't even do a 3 issue arc for RUNAWAYS again? Oh, well.