Good point. Maybe things are different now, but...
I'm not claiming to really know, but I've heard multiple times that a big factor in determining naming rights can depend heavily on confusion with brand recognition. For example, can an NHL team named Utah Yetis be mistaken for any of the products YETI sells or give the impression they're associated with the company in any way? Take business away from them?
Not really, IMO.
Plenty of other companies with the same name, like you mentioned
@MIGs Dog, selling different products that are competing for internet hits. Why should YETI be granted rights other companies don't have too, just because the internet came later?