If I understand the posters question three way are not necessarily better than two way speakers. However, IMO three way multiple speakers in a tower likely have greater dynamics for a live sound in a high quality speakers vs a bookshelf two way speaker.
Just how many options does 1 need in a 2 way bookshelf design?
Do we really need this many options in a 5-6" woofer 1" dome or if lucky AMT or Ribbon bookshelf speakers? To me, these are the lite beers of audio design.