I can only speak for myself, but it's because they say, "M.U.S.C.L.E."
If those were just fun, new keshi, then I wouldn't care either way. Those figures don't interest me, just like similar original keshi (Mario, Mega Man, etc.) didn't. But if they're going to fly the M.U.S.C.L.E. flag, then try to make it feel like a M.U.S.C.L.E. figure.
I can compare these new "M.U.S.C.L.E." figures to the original M.U.S.C.L.E. figures. And they don't compare.
They are the shits.
The lady that did the SF2 MUSCLE is the one sculpting The Worst MUSCLE figs. They should just hire her to do them all, and work in a better material.