I would say let them try virtually or in person in June. I think it’s a bit much to ask them to do an Olympic Trial 1-2 weeks, or even 3 weeks, after a sibling’s death.
This might be arbitrary and be seen as superior timing, physical pacing-wise, but I do not know how anybody could argue this is any kind of net advantage, or that it doesn’t fall under the “extenuating circumstances” clause of the selection procedures.