Is room size considered when they design speakers?

Good one Chuck.
😜

Yeah, good one, a dealer speaks

Like selling a +200hp car for 130km/hr speed limit? 
Many mini monitors are too expensive and many towers with multiple drivers are too economical.
Also some manufacturers claim use for their products in limited or larger space.
G

Maybe you could consider asking the specific manufacturer or respective dealer  the question. When I was looking to purchase Daedalus Audio speakers one of the things I discussed with Lou was my room size/layout and he went through which models would be better suited to my room. Likewise, when I purchased JM Reynaud speakers Bob at Amherest Audio and I also had that conversation going through JMR’s lineup.

Great questions!  I too can’t figure out if big speakers work better in big rooms or small ones.  Manufacturers of speakers give no guidance as to what speaker works best where.

2 companies that come to mind are OHM and Canton, both give guidance as to what speaker works best in what space.

And another great question is why does a 7 series BMW cost more than a 3 series?