I agree with all of the above- unless the death was a parent (in which case, I suspect that the GC would not have had a problem writing the letter). The line between “explanations” and “excuses” is a very fine one to try and walk.
You were sick for 2 weeks? every school has systems for making up work. Lucky you for not having been sick in grades 9, 10 & 11!
If you had a perfect 4.0, I get that it’s hard to see it drop, and since you are clearly in the twitchy waiting stage it’s tempting to grasp at every and any thing that might help.
But at this point you need to trust the record you have built over the last several years, the strength of your essays, the validation of the outstanding LoRs that you have earned.