I’m fine with this fight basically being a puzzle, with a way to win quickly when it’s solved. Yes, it’s pretty much the same every playthrough but you could make the same criticism about replayability of any puzzle elements once you’ve worked them out first time around, and I don’t think that’s a reason to exclude them.
I wouldn’t want lots of fights like that, but as a way to introduce some higher level enemies that your party otherwise couldn’t beat (or can, but it’s hard!), I’m happy with this and the spider queen fight. I’d prefer it wasn’t turned into an incredibly hard and frustrating “real” boss fight - for Grymforge that’s Nere and gang - and there’s no way it should be easy without a trick.
