There is always that danger. We've opted to have users remove and hide the update (or in the case of an update server, remove it from the deployment list) since the only reason for the update was to add currency symbols that we and our customers will never use. Of course there's always the danger of the update being reapplied as well. Getting rid of the update seemed like the lesser of the two evils.
Naturally, if you can swing it, changing the fonts in your reports away from the affected fonts solves the issue entirely. For us, we have hundreds of templates out there and such a change would take a significant amount of time that we don't have at the moment.