Uh...no.
There are plenty of parishes more wealthy than this, including mine. I can name some pretty wealthy ones that no one would expect. There are a few parishes in the red, yes, but mostly that has to do with living beyond means. In my parish, I would imagine that comes with running a school, but since I belong to the Cathedral, I doubt we're in any danger.
This year's appeals for the high schools beat the goals - and where that money goes was investigated by a private firm. Not one dime goes to the people suing. The archdiocese last year was in the red due to health insurance payouts for employees who fell sick and can no longer work. That whole situation is a mess and no, the cash just isn't there. That's more where money is needed if that's the motivation for closing and consolidating parishes. I doubt seriously that that is the case, though.
From what I have heard from parish board members in the county, the sexual abuse claims,etc., have resulted in a drop in the contribution level from county parishes to the general appeal drive. Similarly, the Episcopal churches have had trouble achieving their previous level of donation following the approval of the gay bishop in New Hampshire (up to a 30% drop in one church alone from the announcement in October to the end of the year). Given the number of school closings that were announced last week, I cannot help but believe that with the "big bucket" accounting method, more of those schools might have stayed open had the archdiocese more money to help them along. Some of them were quite old and well-established. Demographics and teacher problems alone could have not created this situation.