Hard mode in Wordle precludes that option; after weeks in that mode in Wordle it would never occur to me to put an entirely bogus set of numbers into this.
I haven't played hard mode, but i imagine part of an optimal strategy is trying not to paint yourself into a corner like that.
Just the other day, i had SHA_E and knew there were more possible solutions than i had turns left. I guessed MILKY to try 3 possibilities at once.