An ugly word for an ugly thought. It does no one any good to shy away from those truths.

[ He's not being harsh, just realistic. It's hard to say what capabilities these people may have when it comes to dealing with Servants like themselves, but he isn't going to assume they're invincible. Maybe just... comparatively overpowered. ]

Although that would be ideal for them, there's too many variables to say whether that's possible or just a flight of fancy. That's where proper relations will decide quite a lot.