I don't agree with you here.
The rule in my view is to cover your closest opponent, which in this case was Vettel.
If, hypothetically, Vettel had stayed out and his gamble had worked, they would have lost position.
The mistake was made when Vettel pitted and Fernando didn't. Once Vettel (and of course Hamilton) had changed tyres, then they should have simply mirrored that strategy.
Bookmarks