That reminds me when I got a server-grade Xeon E5472 (LGA771) and after some very minor tinkering (knife, sticker mod) fit it into a cheap consumer-grade LGA775 socket. Same microarchitecture, power delivery class, all that.

LGA2011-0 and LGA2011-1 are very unalike, from the memory controller to vast pin rearrangement.

So not only they call two different sockets almost the same per the post, but they also call essentially the same sockets differently to artificially segment the market.