The more I think about it the more impressive that penalty gets. As someone said, if he doesn't make it we almost certainly lose. Missing a penalty causes heads to go down and shoulders to slump (see: Tottenham at the Ethiad this year). Yet Townsend steps up to take it.
This is a guy who has talked about how he's been frustrated recently with his poor form and inability to push on from his hot start last year. He's also barely played in the league at all. But he is the one who grabs the ball even though he is aware he's out of form etc. For me, that is incredibly impressive. Last year we continually bemoaned our players not standing up to hold themselves accountable. Townsend taking that penalty shows the initiate and mindset we were missing and seem to have found in Kane, Mason, Eriksen, Bentaleb, and Lloris. I don't know if Townsend has the talent and footballing mind to push on here but he showed a massive amount in terms of his mentality against Chelsea. Seriously impressive, you need to have some big ass nuts to bury a penalty like he did.