Connor isn't a normal human, though. He's half Heroic Spirit, remember.
And, I'm not saying Connor would win, just that he wouldn't lose/die instantly. If he loses instantly then your character is some way stronger than a servant, in this state at least.
Being half heroic spirit doesn't make any fucking sense.
He's half Lancer. That makes perfect sense.
When I said "half heroic spirit" I didn't mean it as a literal statement (Ryoko is half heroic spirit, but that half is genetically identical to Shirou, and Kiyoshi is
not half heroic spirit, technically), I meant one of his parents is a legendary hero and demi-god, which means he's probably quite strong....
And when you can take a 10 Gauge shotgun blast to the face without flinching, I don't think you can stop him when he turns his attention to you.
Look, either he is OP or Connor can at least delay him. Those are the only two options here. If Connor can't even hold him up then he is too damn strong.
It is really ridiculous to make characters and then go "well, now I go into super-strong frenzy mode and kill you" whenever Lantz does anything you don't like (that he has no reason to ICly even expect would trigger that response).
I think what Magos is trying to say is, okay maybe a fight wouldn't be an easily resolved affair, but if it's just getting past Connor to feed from Sakura, then Jack can easily do that, especially in a frenzy.
I would imagine that Connor wouldn't just go away....