Because more people wanted slots, they used a lottery. And some churches who were used to having the slots all to themselves suddenly couldn't.
They weren't entitled to those slots in the first place. They were just lucky nobody wanted theirs. Now that somebody did, they lose. Too bad.
The lottery was an attempt to compromise. Not everyone is happy, are they?
Either they have to give a slot to anyone who requests one, expanding them to whatever number is necessary, or they need to stop giving them out at all. But maybe a lottery will work if the losers stop whining when they lose.