Ok, so lets consider for a moment if Hashfast did not do what was good for Hashfast... Hashfast refunds the BTC at the current rate, presumably having to purchase them off the open market. Where does that money come from?  They probably don't have it, as it's already been spent on development... but lets say they do have the cash to purchase at least some of the BTC back.  They exhaust all of their cash to do this and issue as many refunds as they can.  Now they have zero cash to continue operations (people don't generally work for free and suppliers sure as hell don't give away product for free), have not paid back everyone and are forced to go out of business. 

The end result of your solution: Some people get paid back, others get nothing. No one gets hardware.

At least to me, that sounds like a much worse solution than everyone at least getting your hardware, even if it is late.  If I were a customer, I'd rather have guaranteed late hardware than a crapshoot of a 1 in ten chance of a refund or nothing.  Maybe you have a different opinion.