That's because the decent PA speakers are able to do both rather than either or.
Come to one of our gigs and unless it comes out of the PA cabs you won't hear it, bass amp went a while ago, monitor wedges about a year later, guitar amp went the end of last year.
The guitarist spent thousands on acoustic guitar amps and various special di boxes, during lockdown he tried his acoustic guitar through his Helix pedal board and a 1x10 powered cab, turned out to be the best sound he's ever had!