Personally I think they should coordinate with their Venture Captains/Lieutenants to organize events based around when these timelines for racial boons are set. So if they say the month of March is the month of the Catfolk. Then that means that the Venture captains must organize at least one event where the scenario is run. Give out a month in advance warning so that the Venture captains can send out invites and get things ready.
As far as who gets the racial boons. I don't see why you wouldn't just give the boons out to those who attended these events. I honestly don't understand why racial boons need to be so insanely rare.
I'd think that templates would be more of the super rare boons that people could get. How bad ass would it be to get the half-dragon template after being the sole winning group of an event at paizo con. I think having a 10% chance to get a catfolk is a bit lackluster IMO.