I don't know if i understand properly, but you want to make possibility of pay out frozen funds, but not from last week of mining,before accident happen, am i right?
Yes. And according to your stats, such decision will minimize damage for you (and other old miners like you).
Whatever you decide, but please, be honest with all. I think it is good idea, but i am expecting that you also return funds from last week of mining before accident too, so newer miners would be happy too. Last week payment , maybe not now, buy in future, when your pool will be up a running stable and updated as it should.
This is fair proposition, for long term, old miner as you said before.