I'm not great at math, but to me it looks like Hamilton has a 40pt lead, with 150pt remaining. One Mercedes retirement and it's 15pt with 125pt remaining.
What Brundle said was that if Vettel wins every remaining race and Hamilton comes second in every remaining race, Vettel will win by two points. As (6*25)-((6*18)+40) = 2.
He was definitely the most entertaining driver in the race. He spent most of the middle of the race being a roadblock on really dead tyres. Being completely walloped by Perez for no reason definitely helped his cause.
He should have gotten out of the way, instead he failed to make an overtake and then refused to get out of it, almost costing the lead of the race.
He was shown the blue flag for the first time before the final corner. Technically, he should have then let Hamilton through by about Turn 5, but he continued following Sirotkin, eventually passing him at turn 7. Sirotkin technically hadn't been shown a blue flag, you can see from the images that the light box was flashing a blue flag with "8" on it at Grosjean. When Sirotkin was passed, he rightfully fought for position, until Turn 9 when he had to cede the position. He was then subject to he blue flags and let both Hamilton and Verstappen through at turn 10. Grosjean then waited until the straight after Turn 13 to let Hamilton through, and of course then parked it in the middle of Turn 14, blocking Verstappen.
