>>713600691to get s mode if you're not abusing blade mode attacks you basically have to be unupgraded otherwise you'll kill the enemy before you hit the arbitrary attack requirement, you probably just didn't realize you were "abusing" blademode because you were naturally slashing the fuck out of enemies when they died (i.e. spamming slashes to cut up a boss at the end, or cutting up regular enemies a bunch of times going for zandatsus)
but when you've played the game enough, you don't do those natural slash spams, so you have to manually do it and it just feels like shit imo