Aha
Well, thanks for telling me 
Now I'll know that
Why would you EVER think about attacking him?!
bc it's faster
I thought about it due to Kris doing like 500 damage after sword route (probably less normally since I was doing no-mercy, just thought if it affects pacifist playthroughs if you attack him) also because it's faster
Kris' damage against him is halved normally but tripled if you did the sword route
Guess Kris just hated Tenna's guts after finishing the original game
Honestly Kris' outlook on Tenna post sword is funky. The sword route check for Tenna is like...
Despite his size, sadly, he's quite fragile.
It's probably because he spilled the beans about his "deal" with them, although Kris shouldn't have been fuming, as that gives the player almost no information or anything like that.
It was already proven that they were working with the Knight a thousand times...
One could say, glooby...
castle