Yeh that lack of showing Vettel come back onto the track was likely a result of last week, I can't blame them. How Vettel didn't get t-boned I don't know, same with Stroll. That was the accident that claimed Huberts life, then there was another huge crash in F3 at Monza, I believe they were just being cautious.
As to the race, I think LeClerc had that in the bag even if Merc found a way past. On a track like Monza (and same as Spa) those long straights really play into Ferraris hand; it's unreal how much speed that thing has in a straight line. Consistently 3-4 tenths faster, even with slipstream and DRS Hamilton was ever so barely able to pull the Ferrari in much less get close enough to challenge in the braking zone. Ultimately being stuck unable to get that pass done just killed his tyres and even if he did do it eventually, I'm not sure he would have had enough tyres to make the difference in the middle sector to get out enough of a lead that LeClerc wouldn't just sail straight back by again on the straight.
What was interesting though, was the performance deficit between Hamilton to Bottas and LeClerc to Vettel. Bottas is just not a great racing driver. With 8 laps newer tyres, he couldn't even achieve what Hamilton had been doing for 30 laps, which is stick his car up LeClercs behind close enough to put the pressure on. Hamiltons greatest strength is his wheel to wheel racing and relentless pressure but Bottas just seems incapable of either. I mean in Bottas defense, he's being compared to Hamilton who is known for breaking other drivers but he just doesn't have any killer instinct.
Vettel though, jesus. He's a mess. He says his head is still in it, but if thats true, you really have to be asking questions about what he is truly capable of. The mistakes he makes aren't what you expect from a driver at Ferrari, much less one that arrived there with 4 WDC. LeClerc is clearly both the superior driver and the one capable of handling the pressure. I would honestly be very very surprised if Ferrari aren't already looking for alternatives. LeClerc is clearly going to be Ferrari's Number 1 going forward and if I were Vettel I'd very much be trying to get back into that second seat at RB and hope some rose tinted glasses of the success between that partnership garners him some pull.