Easy win? Maybe against a bad scorp. I'm not sure how good/bad that MU is for scorp though.
It's not that bad. I think lariat just abuses the fact that tele kick counters both hellfire and spear, (and teleport punch?). Roll goes under spear.
Basically if you're not a committed scorpion player, Mileena will blow you up.
But scorpion can combo off his D1, which if you call even the EX tele-kicks out. You get a full combo.
D1, tele punch, dash 1,1 Spear, JiP, F2,1 Teleport punch for every single EX telekick.
Scorpion has some of the best anti-air damage wise combos so comb'ing a blocked roll is no problem either.
She doesn't have overwhelming pressure, that scorpions negative pokes harm him, he doesn't need to use armor to get out. Can easily trade a zoning sai with EX spear mid screen.
Scorpion has nothing far away though.