I was going with max pitting too.
If max stayed out and ham pitted it would be the exact same situation but roles reversed and the other half of everyone crying about it.
But I understand why merc didn't pit.
If Lewis pitted there's no way in hell Max is pitting, he'd be taking the track position every single time because it's the easiest way past and certainly the safer gamble given the safety car would ordinarily have run to the finish without Masi feeling the need to mix it up.
Would Masi have employed the same 'one lap run to the title' idea with the positions reversed? That's speculation that people will have differing views on. If that was a known fact in advance, i'm sure Mercedes would have been happy to sacrifice immediate position to have a clear run at Max on softs though.