To me, it's not "what a Strat doesn't provide"...Strats have a LOT going for them from a features standpoint.
"I'm not a Strat guy" because I can't seem to gel with the ergos of a Strat and in "traditional" form, just about everything annoys me about them...middle pickup, knob placement, bridge saddles, you name it.
I have a Chapman ML-1 that I adore, but I don't play it much because it totally adopts the classic "Strat" shape and ergos, despite having a Floyd Rose, dual humbuckers, and more modern neck and fingerboard profiles. I also have an '80-inspired transparent hot pink Warmoth Strat build that I rarely strap on for the very same reason. And, like an idiot, I built that after owning 3 high end Charvel super strats that I never connected with (great guitars, just not for me), a '90s MIJ Strat, and a MIM Strat.
I
want to like a "Strat", but I'm much happier with just about everything else, including my PRS, custom "Meteora" build, and various V-style guitars. Heck, that "Meteora" I just finished recently is delivering the goods with its DiMarzio "True Velvet" single coils! Can't see needing a Strat for any "single coil" tones after spending some time with that beauty!
The only "Strat" style I intend to keep at this point is my Washburn George Lynch "Outlaw" prototype, because it's an absolute monster of a player!