Like Faried, Steph Curry dominated the bigger schools. Outside the BigSky, which was a rarity, Lillard was not nearly the player he was playing against the likes of Sacramento State and Mayville State.
i'm not real high on lillard but looking at his stats per game against non Big Sky "power conference" schools:
at St. Mary's - 36 min, 36 pts, 3 asst, 1 t/o, 2 reb, 11/18 fg (61%), 2/5 3pt (40%) 12/15 ft (80%)
at BYU - 31 min, 15 pts, 2 ast, 3 t/o, 10 reb, 5/12 fg (42%), 1/4 3pt (25%), 4-4 ft (100%)
at Cal - 36 min, 14 pts, 3 asst, 0 t/o, 3 reb, 4/17 fg (24%), 3/10 3 pt (30%), 3-4 ft (75%)
vs Utah - 34 min, 22 pts, 5 asst, 1 t/o, 3 reb, 7/15 fg (47%), 4/7 3pt (57%), 4-4 ft (100%)
I don't think your argument really holds up looking at these numbers. even if you want to throw out the Utah game because they were an awful Pac12 team, he still more than held his own against the other 3. There are plenty of reasons not to like Lillard, but saying he didn't perform against the better teams he faced is incorrect.