There's a bit too much of an obsession regarding the 500k figure IMO, at the end of the day having 20k less than it doesn't change things too much from if we had 20k more than it.
If what we're led to believe is true 500k covers payments becoming due for salaries and tax/NI in the next week or two however there is no point calling in the pledges if no way forward for the rest of the season (ie the next 500k) has been identified. Raising this money in pledges this quickly is a credit to the RL community and the people of Bradford, but if there's nothing forthcoming about the next tranche of cash needed there is no point taking money to string things on for another month.
The delay in making the announcement can only be in hope of a solution being found, I think the initial hope was that the way forward would have been identified and presented itself so it could have been announced in glory in front of a big crowd last night.