Seb was out classed, but Ferraris tyre call was ridiculous. There hasn't been a "cliff" for a good couple of years, and as Brundle pointed out, they stick the hards on every week and are surprised at how good they ever - every single time. Mercedes knew that the tyres would plateau and equal out. Ferrari should've pitted Seb with Lewis. You could also tell that they didn't have a clue what to do - once again, Seb was having to help them make that call from in the car. They were completely unprepared.
With Leclerc, it was just plain wrong. One stop was faster - everyone knew it, and it was talked about pre-race. They pitted the fastest car, from the lead, on a worse strategy. That was nothing but a reaction without thought, rather than coming up with the best plan. And then they made a mess of the pit stop, and Leclerc started over-driving.
Lewis was brilliant, but Ferrari threw this one away.