promo banner said no wager but cashier still locked winnings behind rollover

Has anyone else run into this? I went for a bonus that had this big "no wager" tag on the banner, looked straightforward, so I tried it. But once I had some winnings, the cashier section suddenly slapped on a rollover requirement. I'm usually pretty careful reading promo details since I review casinos for fun, but this one felt sneaky. Double checked the terms page and it was honestly worded pretty vaguely - almost like they wanted to lure people in with the banner then hide the real catch until later.

Am I missing something or does this just happen way more than it should? Do you guys usually trust the promo banners, or is it better to assume there's always some hidden condition waiting?