And he still will be when you face fully stacked blitz team at your power level. Whether you have 40k or 140k result is the same tbh. That 100k or higher power treshold everybody is talking about isn't some sort of magic point where BOOM roshi is immortal happens. It's more like an average number some players agreed on, that in majority of matchups (matchups which actually are below your power) roshi lives and scales. But that doesn't apply when you face equal or stronger blitz oriented teams. My roshi felt just as tough (or weak) at 70k as he feels now at 130k. Depends who you face.