Everyone fucked it up big time.
People keeps blaming Sainz, Stroll and Hulk, but truth is everyone had 6 full minutes to go out, none did, and then they all played the bs game during the whole lap. By the point they wanted to overtake Sainz at the back straight their laps were already dead. They could have overtaken him during the lap. No one did.
Both Mercedes stopping on the pit end on the first stint so the Ferraris would go through was also totally stupid.
Next time you’ll see teams leaving the pits on these 6 minutes they had.