Prior to Lewis retiring from the race, the team opted to keep him out during the Virtual Safety Car, which cost him track position when he eventually had to stop.
"We were running one and two and controlling the race - and suddenly you see your second car stopping," Toto explained.
"The VSC came out, we had half a lap to react and we didn't. Fact. This is where we lost the race. At that stage of the race with the VSC, pitting is probably 80% the thing you need to do.
"With one car out there against two others, the thinking process that happened was, 'what would happen if the others pitted a car?'
"We would come out behind Kimi, because they would leave Kimi out, and behind Max. What would that mean for the race?
"That whole thinking loop I wouldn't say distracted us, but we spent too much time on that."