For what it's worth and to prepare for the next paragraph, I work in the investment industry and have access to a lot of feedback from banks and wealthy people.
There is a global economic crisis on the way the like of which humanity has never witnessed and it will change the way of life for most people forever. The banks know about it and so do the super rich, governments, big corporations, etc., and accordingly are strategically positioning themselves frantically to survive it as best they can. One of the priority measures being taken is decoupling from debt and naturally, banks don't want to be saddled with any debt that they perceive as risky. Everton, unlike Liverpool and Man Utd, do not have a vast global fanbase aka dependable income stream and so, in my view, EFC poses a much greater risk than larger clubs, despite the principal it owes being smaller than what the others owe. So that provides, at least in my estimation, some context to Everton's banking woes. That all said, if events go as far south as I fear, even Liverpool and United with their grand fanbases will be sucked into the pit too.