Just catching up here after some time away for the holidays...
Yikes!! This Golden Globes scenario would be so heavy! It would/will be hard enough for folks like us to watch... it's hard to imagine how Jake would get through something like that. But, it would certainly be a sweet gesture.
Based on his total public non-acknowledgment of Heath's passing, I don't think he would do it. Like you said, I think it would be too intense for him.
But it would be so great if someone else who was meaningful to Heath did it.