I doubt that. Especially considering how popular westcoast hip hop/gfunk was back in those days. Gfunk and 90's southern rap incorporated strings and chords heavy in their tracks. Guys like George Clinton, Bootsy Collins, Rick James etc would regularly make cameo appearances in music vids or be featured on tracks in the 90's. Hell, even Dre and Death Row used to bring bands in the studio and use live instrumentation to record tracks. So I don't think you'd be considered anymore of a weirdo back then, than you would now. Most of those rappers from back then didn't even grow up in hip hop since hip hop was in it's infancy when 90's rappers were kids. Those rappers actually grew up in funk, soul, Blues, rock, RnB, etc.
What I do sorta agree with you is, that because of YT and of the availability of content in todays era, it's easier find black rock bands nowdays than in the 90's. But there was a time where popular black music was exclusively guitar driven(1950's-1970's). And you won't find any popular genre anywhere near that in 2019.