When I have talked to SEVERAL speaker designers, most stated that bi-amping does nothing.
I’ve seen others state they’ve read the same thing, so they end up not trying, which is a shame, because IME it’s not true. Since everyone’s setup is different, IMHO it’s better to give it a try if feasible.
With that said, not everyone has two amps available, and not everyone’s speakers are worth the effort/cost, which brings us back to the fact that everyone’s situation is different, so the consideration should always be based on where they stand vs what someone else said in a generalized statement,