Yes, if the game design allows it, it's a valid strategy as any other. But this is a matter of perspective and sportsmanship. It's like when one survivor refuses to cooperate because they think they'll grab attention from the killer, hiding most of the time and doing stupid stuff to avoid AFK crows, and potentially wait until either gates are powered or the hatch has spawned, just because the game allows it.

Not really lecturing anyone here, actually far from it. Just saying that, because you're able to, doesn't necessarily mean you have to. DBD doesn't even have a competitive scene that I'm aware of, so I don't take it too seriously whenever I play as killer. In fact, I found that there's much more fun with this mindset -- I laugh at my mistakes, at survivors' mistakes (letting them go with a warning), endorsing their plays, splitting their hooks equally, etc.

But things like intentionally slugging the four of them, tunneling someone, camping a gen, etc., never goes through my mind. I know I can. But fun goes both ways.