Robertson said a tactical change by Klopp at the interval enabled Liverpool to regain more control but accepted Arsenal piled on the pressure in the closing stages, culminating in Lacazette beating Alisson to earn the Gunners a draw.
Also, he noted that the 14 games unbeaten including 12 wins at a stretch and scoring a total of 36 goals so far is a thing to be delighted about as an Arsenal fan.
"He was up against three really good attacking players".
"I'm happy with our performance and I think today the balance in the 90 minutes is more balanced positively with the control against them, but it's very hard to not let them have chances also". It was a slightly unusual game, one that Arsenal dominated for long periods and yet one which Liverpool had enough clear-cut chances to have won fairly comfortably.
This was arguably Arsenal's most impressive - and encouraging - performance under Unai Emery. "One time we didn't close the half space, and they scored".
Liverpool were left "very disappointed" after Saturday's 1-1 draw at Arsenal, with James Milner calling for a "more ruthless" edge ahead of their trip to Red Star.
Arsenal have won more points from losing positions, eight, than any other team in the Premier League this season and while they have not led at half-time in any of their league games, they have scored 19 goals after the break - more than any other side.
"He gave a few rockets out as well, which is important - you need someone to make sure you try to get the best out of those around you". "Yes, and I do", said Klopp, when asked if he has to ignore City's relentless accumulation of points.
Liverpool forward Sadio Mane had a first half goal incorrectly ruled out for off-side, with Klopp bemoaning that decision as he met the media.
The very fact that Arsenal are being mentioned as possible title challengers is exciting and surprising.
Emery, while insisting that a point is never enough, admitted Arsenal's performance against Liverpool showed good progress is being made at the Emirates.
It was Iwobi who would play a part in Lacazette's leveller, playing a precise ball into his path before the former Lyon man kept possession and bent home a precision strike.
If work ethic, pressing and intensity have been hallmarks of Emery's early impact on Arsenal's play - forged during meticulous and high-energy training sessions - then so too is the spirit he has forged in the camp.