Should I have any problems with Asurion, if I trip KNOX? I know that I get a replacement before I send back my device. I just want to make sure that don't hit me some crazy charge, if they ever do find out. I might just bite the bullet and go root w/ tripping KNOX (already on 4.4.2).
Knox applies to Sprint Warranty. Assurant is purchased insurance. Different ball of wax that Knox does not impact. You just can't take the phone to a Sprint repair center without paying for everything. All repair/replacement issues will have to go through Assurant instead.
Then I was misinformed by the tech in the Sprint repair center. Your area may be different, but in the Milwaukee area the Sprint repair centers won't touch your phone if they can tell it's been rooted. You either go through asurion, pay full price for the repair, or buy a new phone. You are misinformed about whether Sprint cares. Your local tech might not, but the company does.