I'm afraid I don't know enough about Steam yet to answer this question. I'd be perfectly happy giving you guys keys for you to use, I mean you already have full access to the game, and I have no interest in extorting the last bit of money from you :) My only concern is that a mass give-away will result in some significant amount of keys going out to some second hand key reselling stuff like G2A, which would suck for me.
If there is a way to prevent that (e.g. locking keys to a certain email address maybe?) then I'll happily do that. But I didn't research that yet.
For the record, I'll keep the game available and updated here as well!