As for why no 1×11, think outside your box, and go ride up a mountain, if your buying Deore you are probably less fit than a purchaser of XTR so you tailor for the market. It may come as a surprise to hear that people ride up hills these days
Bikes in my shed:
SS – Shimano Hone, Goldtec, On-one, KMC,
1×8 – Shimano DuraAce shifter, XT mech, Sugino, Superstar, SRAM, KMC,
1×10 – XTR shifter, SLX mech, RaceFace, Absolute black, Shimano, KMC.
2×9 – microshift thumbies, XT mech, XT, KMC, Shimano, KMC
Now, in the Weighted Groupset Scoring System, the 1×8 road bike with it’s XT/Dura Ace combo would seem to make the fittest when I ride it, but the bike itself isn’t very good at going up mountains, unless they’re paved, which I guess plenty are. But it was the cheapest (free-est) bike, most of the components have been on several other bikes, and it’s got the least gears…
Too complicated for me, I think I’ll ride the SS tomorrow!