Nevertheless, Robertson said his troops' disappointment also extended to not dealing with the Suburbs' counterattack better as well.
"However, I think Western Suburbs is a good side and will probably be one of the better sides this year so it's a point gained rather than two lost," he said, reconciling the performance with how they had only been together again for a few days so the players could only get better.
While the expectations of players and fans were understandably high after last season's record-making exploits for the Blues, he said they had to work hard to emulate those feats.
The struck first through English midfielder Ryan Tinsley in the 63rd minute of the football encounter after the midfielder rose to nod the ball into the net past Suburbs goalkeeper James McPeake following a goalmouth scramble as the visitors' defenders failed to clear a corner kick.
Suburbs player Noah Bingsley made it 1-all in the 85th minute after fellow striker Matt Walker, working fearlessly throughout the game, scooted past defenders on the left flank to cut the ball back into the 18m box.
The intensity of the game showed on the visitors as they were run out drinks at halftime on a balmy 28-degree day of winter league.
Rovers keeper Ruben Parker-Hanks, who recently had surgery of the nose, wore a face mask and got fitness clearance from the Rovers to play minutes before kick off at 2pm.
When the second half resumed, the Blues showed a lot more intent than the Wellingtonians despite a few handbag situations which referee Antony Riley kept in check.
The Rovers hit the road to Wellington Olympic this weekend before hosting another powerhouse Wairarapa United in the third round.