With the Baggies leading 2-1 at The Riverside, Carl Robinson's reckless challenge on Nemeth in the penalty box on 66 minutes resulted in the spot-kick which Yakubu cooly despatched to earn the home side a share of the spoils.
"Robinson was a bit rash with his challenge. He did not really leave the referee anything else to do but award a penalty," Robson said after the game against his former club.
"This was a good result even though I thought we could have got the three points. We have missed chances away from home but Ellington and Kanu looked good today.
"I thought we passed the ball really well but were not clinical to finish the game. In the last 15 minutes I thought we passed Boro off the park and should have won the game.
"Tomasz Kuszczak made some good saves. I would not swap my goalkeepers for any in the Premiership."