This is how i see it, labcoin chose to prove they are hashing one day before BTCTO announces its closing down, i would find it very unlikely that the stock issuers were not told before the announcement that BTCTO will be closing down in order to give them time for preperation etc, therefore Labcoin could've probably gotten away without ever proving they are hashing by delaying, however they didn't why ? becouse they are not a scam? who said scam? once you realise they are not a scam, you will realise that the scam is only inside your head
Every share holder contacting the issuer is not going to help the process or speed things up, it is probably best to give them a few days(the ones you trust anyway) to sort alternatives and figure things out for themselves as i doubt BS gave them anymore notice than the shareholders.
Contacting any other parties in advance was not an option. There should be plenty of time to figure things out.