FietDit

actually, the warden will sniff their opponent less than 20 block away, this is an alternate way for the warden to detect their opponent if the opponent is covered by wool(where wool itself is block vibrations). the warden will be aggrovates because if the opponent is 6 blocks away from the warden. in short the warden can still feel its opponent if the opponent itself is 6 blocks away from the warden. no need for vibrations.

In my own opinion, the warden doesn't need this feature back, because sonic boom might be the replacement and in my personal opinion, sonic boom is quiet stronger because shields and armor can't withstand this attacks even with enchantments