This looks absolutely terrible, how is the hot hair supposed to exhaust properly, into the front of the case? The colour of that tubing looks visually disgusting too.
With case top mounted fans, it should be no huge deal even if it exhausts the heated air inside the case. Especially the case types who have the mobo in the bottom with a psu/air zone above it - But yeah, ideally it should have exhausted the hot air on the outside near no intake fan.