notice in the WCA regulations how the allowed error is always exactly half of a full turn. (a full turn on megaminx is 72, so the allowed error is 36. a turn on pyraminx is 120, so allowed error is 60, the / turn on a Square-1 is 180 degrees, and allowed error is 90, etc.)
Since that side has to be turned a full 180 degrees and it is currently turned less than 90, you're good.