Bugly
Android Expert
Still doesn't explain the locked bootloader, when other manufacturers are unlocked. Still doesn't explain why, since they can monitor your data usage whether you are rooted or not, they would even bother with the illegal tethering use. I don't tether, nor do many people I know. If someone does, shut 'em down, don't lock the bootloader and vilify the customers that want root access.pretty much right on, although they're concerned about bricked phones being returned under warranty, not insurance. Verizon doesn't provide they insurance, Asurion does. it doesn't really cost Verizon anything if you file an insurance claim.
They're also concerned about people using root to bypass the pay wall on certain features (like tethering) in ways that are clearly illegal (ie hacking the Verizon hotspot app). In short they have some legitimate concerns among the crap.
Personally i think they should provide an root code (or something similar) on request with the condition that you loss warranty protection on any software issues.