So you use a different technique in that case, and save that for when the stances match up (waiting for the opportunity). Or you find out what you can use that extra step for (preliminary strike, structure breaking, etc.), so it's not a problem.The issue is this will add 1 extra step in your move. It may make 1 into 1,2 or 1,2 into 1,2,3.
In the following clip, if you have right leg forward, you can hop in with 1 move to take your opponent down. If you have left leg forward, your extra step will slow down your attack.