I started out using MC for 100% audio, back on version 9 or so. Now, on version 24, I am 99% Video (all pre-recorded; no live TV.)
I do listen to my music library on occasion, but it is now quite rare.
I have MC-provided video output in four places: my Mac workstation, main 4K TV (Windows 10 HTPC), bedroom TV (Android TV box, accessing MC via DLNA through Kodi), kitchen TV (ditto, DLNA through Kodi.)
Of those four outputs, only one (Mac workstation) ever listens to music. The DLNA devices don't even have a Music entry, and while the main TV HTPC does have Music on its Theatre View output, it's almost never used.
So personally I am strongly in favour of future development focusing more on video playback than music, if/when such a choice was being made.
My files break down as follows:
* Video - TV shows, documentaries etc: 8145 files, 7.1TB, 240.6 days
* Video - Movies: 317 files, 510GB, 25.7 days
* Audio - music, Classical: 2395 files, 47.9GB, 8.4 days
* Audio - music, Contemporary: 12039 files, 265GB, 33.1 days
With 95+% of usage coming from the first category: Video - TV Shows.