You are right in that it looks like the robots had a lower incidence of major complications but the P value was short of "statistical significance" (i.e. 0.05)

You are right in that it looks like the robots had a lower incidence of major complications but the P value was short of "statistical significance" (i.e. 0.05) so it was not considered proven. This is a long way from saying "there was no difference".