That makes total sense from one perspective, but is complete rubbish from another perspective. IMHO.
“Good” or “Bad,” from an artistic standpoint, the SE should be amplifying whatever tone the musicians are producing; as opposed to reworking them into something that the SE finds more preferable.
In a perfect world, the SE would have sufficient time to work with each musician to mutually find tones appropriate for the FoH mix, yet still within the individual sounds the musicians have cultivated. Dismissing a musician’s “specific” tones happens at many larger gigs, for a variety of reasons; some practical, and some stylistic. The latter reasoning / purpose may not serve the music.
Hope that makes sense.
I once attended a Trombone Shorty performance at Centennial Hall in Tucson. The FoH Engineer (from Tucson, not the band’s regular) mixed the FoH to be a massive version of a 2000W subwoofer system in a Honda Civic. The R&B bass lines were entirely obscured by being relegated to the massive subwoofers.
While, I am sure that particular mix suited the SE’s reference bias, it also was significantly distorted from that band’s reference sound. That is a rather extreme case; but, my post is intended to simply clarify that “player mojo” is sometimes intentional; and best case is to sort out the FoH issues consistent with the music vs SE preferences. Which often gets inadequate attention / time.