You can't just say "it's a slippery slope" without any evidence or context.

That's not even a statement. Slippery slope to what end? By refusing to spell it out you can claim any interpretation that results in absurdity is a strawman.

"It's a slippery slope" is literally a bullshit statement. It's vague enough to express disapproval without really presenting any argument other than "just don't" yet it has the appearance of sophistication.

Either make an argument or just say you disapprove. Being vaguely ominous doesn't add anything to the conversation.

Here, I'll give you a start: "I think leaving such a wide range to a board's decision is dangerous because...".