Ivan’s issue is that by saying the Raiders were ‘managed’ back into it, that insinuates the ref wanted to artificially get the Raiders back in the contest - which deserves the fine.
If he’d said something along the lines of ‘I think the ref was conscious of a lop sided penalty count and How that might look, that might have impacted his decisions in the 2nd half, which subsequently gave the Raiders opportunity to get back in the game as they got momentum off lots of decisions going their way’, he’d have been given a little more slack, and would have been correct.
The refs do try and even up the counts IMO. I don’t believe they favoured the Raiders or tried to manage them back in the game though.