He's not wrong, hell, it's pretty dumb how they just pretend that Servant Skills, Passives and abilities don't matter because "too fast" when that's not how that works.
In a VS. topic where she isn't alone, why WOULD Deku see Mata Hari as an enemy? Because that's not how Espionage works:
Espionage: A++ And for that matter, that's also how her Noble Phantasm works as we've seen her use it in hilariously out there fashions in Ooku(like getting the protagonist to feel the effects of being drunk without even touching Alcohol or hypnotizing Kasuga into believing she IS the Ooku completely with no false sincerity.
Then there's Sanson and his Extra Effectiveness against Humans... which Deku is and boom, he's dead and no one else needs to do shit.
She doesn't have Presence Concealment, her Espionage works the other way around which is much worse for Deku.
And here's the funny part:
Servant Team
- Shakespeare
- Mata Hari
- Hans Christian Anderson
- Sasaki kojirou
- Charles Henri Sanson
This isn't a battle, Deku is fucked. Shakespeare can literally make him cease to exist with his Noble Phantasm or basically break his mind so fiercely even the remnants are gonna feel it and Kojirou will just murder his ass.