The point is that these transactions have identified an inefficiency in Armory that will have to be fixed.  However, I believe that most users do not have such transactions, and it is only now that we've been able to identify that as the cause for a lot of these reports.  Because no one on our team has a wallet with such transactions in it.  Those types of transactions simply do not exist in many use cases, and thus many people will not experience any such problems.

Please do not misinterpret my statement as blaming it on the user, or saying it's unimportant.  I'm simply identifying that you have fallen into a gap that many users do not, and thus will not have those problems.  Now that we've identified it, we'll try to get a fix into 0.91.1.  Fixing it will require a bit more work than we can put in for 0.91.