Yes, he's obviously not playing the deck right if he's complaining about removal. SY should have no shortage of removal options themselves, so if one goes down another one can be played quickly. Witch Hunter Executioners are already more than enough to kill any card under 9 provisions. Slap down a bounty on a unit, then next turn kill it with an Executioner and make a ton of coins in the process. Then your opponent will be forced to choose: spend a valuable removal on a 3 point card (lol) or ignore it and get crushed. It's a lose-lose for any deck that tries to use engine-overload like monsters, because they don't have enough removal to keep up with SY threats, not even by a long shot.
I got back to pro rank today and played a few games, I noticed lots of Nilfgaard playing the mill/"Copy the golem on turn 3 decks," SK control... my original comment still stands:
I forgot to add Tactical Decision hyper-thin to NG decks, both rank in at #3.