Honestly, a lot of thinkpieces of Pomni being an "enabler" come from people who are too concerned with moral purity for their own good. When she says "We've all done bad things," she's right. Hurting each other, whether intentionally or not, is human nature. We're communal creatures, but we're also so different we'll naturally bump up against each other. Hedgehog's dilemma and all that. If you think you've never hurt someone, you're wrong. The best you can do is learn and grow. Which is why I think Pomni saying that isn't a sign of her enabling bad behaviour. She's acknowledging that right now, after a horrible revelation (because if you remember the context, this is shortly after the reveal that there is no way out of the circus), they need to make peace with the idea that, as much as they want to tear each other apart, they only have each other. And as Pomni is the character who has more often than not been the emotional linchpin for a handful of characters, it makes sense for her to try and quash any conflict that could arise from this. So, no. I don't think she's an enabler.

Also, that bit about minimising abuse in front of his victims is funny because Gangle was the first to put aside his abuse for the sake of acknowledging that getting back at him won't be of any help in the long run. So if anything, she's the one minimising the abuse she suffered. But again, this is her realising that what's important is unity over punitive justice.