There are numbers behind the scenes that correspond to attack, defense, speed, and hp which when weighted create CP. The weights are favoring attack and hp.
They had hards ready, the safety car and thus the pit caught them only ready with the hards ready to go. They had hards in the first place because the high speed corners was limiting the difference in ties.
IMO it didn't make a difference negatively, and Hamilton was saying his softs were about done in the last laps.
I think I've got a bug, since nothing changes when I click it.