fritzboxes are everything but certainly no "prosumer"-type devices. Most of their "mesh" is still dual band. only the latest repeater "FRITZ!Repeater 3000" is tri-band and afaik there is no router yet available that supports tri-band.
The hardware is indeed a bit lagging, I'm not arguing there, but it's not always (only) the hardware that makes prosumer.
hardware stats and software features are severely behind the curve but it mostly just works and you dont really need those features anyway.
certainly not prosumer