Re: is there a root for the LG tribute yet?
Maybe some kind of manual intervention via adb is needed.
Find one and someone will write a shell script to do it. If it can be done manually it can be done by script. If you're comfortable in an adb shell, try to crash Linux so it comes back as root. Then push su to /system and the phone is rooted. The rest is scutwork.
The difficult part is finding an exploit that works, not making it work by using an app.
.. I've noticed that the apps that allow an adb window to be viewed during the root process don't show the phone to be fully attached to the PC. LG seems to have locked this one down hard.
Probably not as tightly as the AT&T and Verizon Note 3s, though. Totally locked bootloader, so even though they can be rooted (up to 4.4.2, at least, and I'm not updating past that), the only ROMs you can flash are modifications of the stock ROM. And if you goof once there's a "write once" bit that gets set, and shows in the recovery screen, so the warranty is gone.
HTC has the right idea - root it, flash a ROM to it, and if the power switch breaks it's still covered. (If you damage it by rooting or flashing, you're on your own, which I think is fair, but if one of the radios goes bad and the phone is rooted, it's still covered.)