Agreed but his point is still pretty valid. It's very much the "yea but they spent £200m this Summer so everyone expected them to win, no one expected us to only lose by this many".
Yeah but you're comparing politics with football. In football there is one loser and one winner. Nothing more, nothing less. Politics isn't like that. In this black and white world of politics why is May (the apparent winner) who is squirming to hold onto her job?
It's worth noting that the Tories didn't 'win' either.