I've booked Vic at events before, and have interacted with him many times.
The "accusations" were largely started because of three things
1) his fanbase, back in his edward elric days, was almost entirely 14-16 year old girls developing their first celebrity crush, and he let them act however they wanted (asking for hugs and kisses etc)
2) there were maybe 3 other anime voice actors as prominent as him, and they all hated him, and a couple literally spread these rumors because of that.
3) there are bigots who hate christians that want anyone who claims to be devout to secretly be a terrible person.
Now, that's not to say he's a great guy. He's a hardass with an ego, high standards, and gets angry easily. He's easy enough to work with as long as you recognize that he expects everyone to follow the rules. If something goes wrong out of left field, he's not bothered by it, but if something goes wrong because someone didn't dot their Is or cross their Ts, he'll flip out on you.
Also a lot of people don't know he got into a serious relationship a few years back, got married, and cut out a lot of his more flirty side.
These rumors are almost all a decade old.
No, they're not going to fire him (nor could they, most likely) for shit like this. Especially when they hire other voice actors that act like rock stars at conventions, drugs and sex included.