After last night, I think the best thing for IT is to play game 2.
I hope he does and doesnt feel pressured into going to the funeral, I highly doubt he is. I know this might sound weird, but I think IT's family in Seattle should urge him to play and most likely are, no doubt his Sister would have wanted him to play and if IT can play and its good therapy for him then he absolutely should.
That being said I wouldnt care at all if he missed game 2 and we lost by 30. It's not that important.