It seems to me they’ve ignored their own rules in order to engineer a final lap showdown.
It wouldn’t have been the result they we’re hoping for had they followed their own rules, and it wouldn’t have been as exciting, but not being exciting enough is not a good enough reason not to follow their own rules.
Reading the reports, the general consensus is Hamilton was robbed. He controlled the race - he’s the moral victor.
For most of the season Hamilton has had the inferior car (Sunny D incorrectly felt the Merc was superior) and managed to take the championship to the wire, and by rights should have his 8th championship.