I don't think any Conservative is "happy" or "smiling" these days. The author seems to have the perspective that this is nothing more than a sporting event. The reality is that we all know that it is much more than that. Some are supporting Trump with all their gusto, others like me are in mourning but can't vote for him. Either way, I don't think any Conservative has the countenance reflected in this article.
To the Left, it's all about POWER. Personal power; then, power to the Party; and for the masses, vicarious enjoyment of power.
A Leftist of the same party as a Leftist melting down as Trump is, would be delighted.
Conservatives are driven by something other than power. TRUE conservatives are, anyway; and that's probably why Trump does not understand them and why he's so angry that Cruz doesn't kiss the ring.
Because true conservatives have a political philosophy and uphold principles derived from that guiding philosophy. Pretend-conservatives like Trump, do not. And Leftist journalists, do not even so pretend. To them it IS all about power and the Team Jersey.