A 22nd-minute goal by substitute Joe Thompson sealed the win for Rovers.
But Curle felt his side should have been playing 10 men in the second half after a poor challenge by Tranmere's Ash Taylor on his keeper Bartosz Bialkowski.
He said: "You look at the challenge and ask is it reckless, was it trying to endanger an opponent? I think it ticks those boxes, although I'm not going to go on about refereeing decisions."
Curle added: "We've had a look at the team at the top of the table and Stevenage in second and the pleasing thing is there is not a lot of distance between us."