It’s easy in hindsight but they should have reacted to Perez, and I was very surprised they didn’t. The car clearly had the pace to get by on like for like rubber. I believe they’d have finished third doing that.
Mercedes seem to really um and ah over pit calls, are very conservative, and they miss the optimum time sometimes as a result. I think Hamilton really bails them out of a fair few poor calls each season, and in the past they have been bailed out by almost always having the pace to make up for it.