[Q] Verizon S5 root

I have done a fair bit of reading and it states OE1 can not be safely rooted due to the inability to downgrade. Yet the .tar file is available.... i do not care about tripping my KNOX, I have no intention of ever returning to Verizon or any other carrier with this phone. Using Odin, can I still flash a different ROM on my device to start my root process.. once again I do not care about my KNOX counter.

Phone Specs;
Model #: SM-900V
Android Version: 5.0
Baseband: G900VVRU2BOE1
Build: LRX21T.G900VVRU2BOE1