Oh--I totally understand--and yet I'm absolutely ok with Strike being custodial * IF * all you're doing is loading up a few $$ and using the lightning network for the transaction.

It's kind of like an Amazon gift card - put some money into it, and spend that money. And (of course) we wouldn't be using gift cards as a custodian service...no, they're used simply for the convenience of transacting a set amount of money.

And so it is with Strike (and I see that as a great service, and a wonderful use case for Lightning).

I don't look at Lightning as a failure because it can't do all things well--rather, I think it does a few things * EXCEPTIONALLY * well, and for that we should applaud it--it moves the bar forward, and we'll find other (new) solutions for the other things. 

 why not use eth systems ? 

 Proof of stake is pointless