No, the bulk of SMP servers are on whatever is the most popular. Be that DW20, RR, Monster, TPPI, or whatever.
though quite honestly, your argument about us trying to force our vision of a pack down your throat. I mean really? If you are playing Horizons, Monster, or Magic World 2 then guess what, those were all visions of packs created by me, (ok Monster was half me, half slow, but all my work.) All fit into the mold they were meant to play, though Horizons was never technically finished. The second you launch any of those packs, or any pack you do not create yourself, you are subjecting yourself to the pack author's vision. therefore this statement is invalid.
Saying the bigger packs offer more longevity is also a fallacy. If I put BnB and Monster side by side (all mods enabled) then BnB takes an average of 4 times longer to reach endgame. The only reason it is not more popular is because it is (afaik) the most difficult pack currently in the public eye.
Also, I don't say people are complaining, I said grieving.