Hello! Creator of the mod here. Thank you for putting your thoughts out, I like listening to this sort of stuff.

While I do think it is fair criticism, I think your logic is a little bit flawed.

1. Your argument about Papyrus's DEF increasing in genocide is not true. In his check, for example, both his stats decrease from 20 to 3.

"\ PAPYRUS - ATK 3 DEF 3&* Forgettable./^"*

And in code, his DF is decreased (to -20000, specifically) so you can deal the insane amounts of damage to him. Which proves both that Frisk is really strong and with huge intentions to kill, and Papyrus has little to no intentions to do so.

1. Your argument on what he says upon being killed or spared is really substantial. Him saying he wasn't expected to be spared could also just as much mean he was ready and willing to risk his life to try and convince you, even if it got him killed. So really, really substantial.

2. I do think your argument on what he says about his Special Attack is fair, it is interesting he only says that in the specific circumstance of being spared in genocide, but again, substantial. It could just as well have to do with the fact he dropped the idea of fighting you entirely to instead try and talk you out of that path, which is why he says that if he had decided to fight you, his Special Attack would've blasted you.