Warburton was frustrated his side - now unbeaten in 18 matches, winning 15 of them - failed to claim another victory, but he praised the Shrews for their efforts and also the quality of the goal they scored through by Tom Eaves' 15-yarder.
Warburton said: "That's football, isn't it? You have to compete and I thought we had a good second half. We got the lead we wanted, but credit both teams. They kept battling away and it was an outstanding goal to draw level.
"It's one of those things. We'll learn from it and move on."
Brentford took the lead in the 68th minute when Marcello Trotta converted the rebound after his penalty was saved by goalkeeper Chris Weale.
Referee Mark Heywood had pointed to the spot after Alan Judge went down under a challenge from Ryan Woods.
"I thought it was a penalty, but I'm going to say that," said Warburton. "From my angle it looked a clear penalty. I haven't seen a replay yet.
"Their goal was a wonder strike, it was in the top corner. It is what it is."
Brentford remain two points clear in pole position with Warburton hopeful the Bees can continue in the same vein which has seen them avoid defeat since October.
"The players deserve it and the quality s there," he added. "They're an outstanding set of players with a great support team around them so we're in good shape.
"There's a long, long way to go, points to be earned etcetera and there's some tough fixtures. But right now we're in good shape."
- Sports & Recreation
- Tom Eaves