When your "talent" is being able to go mach 1 it doesn't matter how much experience the other guy has.
If today's version of the Flash got schooled by the Arrow then I'd completely agree with you. But Barry didn't truly understand the full scope of his abilities nor did he have full control over it all. He was just doing in those off of natural ability in the early stages. I'd liken it to Lebron versus the Spurs in 07. LeBron was the most athletic player in that series but still was neutralized by a team who had experience and understood what it took to be victorious.
So I'd allow it that McQueen was able to outsmart him. Early stage Barry wouldn't have even been able to stop that tsunami last night. He's gotten his powers up to the point where he literally went back in time.