That shows me very little. The t34s never even actually tried to flank. They just kept pushing up in range of the stug and at gun which omgpop knew was there. Omgpop had him pinned in his base and decided to start floating 800 mp, 500 munitions and 230 fuel. He also lost t34s sitting where where he already got hit by a stug and pak. This game would've been over at the 20 min mark if Omgpop had respect for his enemy. He was just toying with him like a fish and allowed him to rebuild his army. Even then his 3 t34s/85s vs 1 pak and 1 stug would've cut through Cien like butter if Omgpop didn't separate and relegate his t34s to harassing lone squads.
This doesn't change the fact that Stugs were pretty effective.