Out of date does not mean broken.
Actually "Out Of Date" literally means the author didn't declare the current API version in their addon manifest. I could upload a version of my addons today with API version 100008 declared instead of 100009 and they would show up as "Out Of Date" even though they're perfectly functional.Out of date does not mean broken.
Kind of does in some cases. Since the Craft Store has not been updated, I tried the Research Assistant. Ended up losing each every piece of heavy armor that I was saving for research as RA told me I had already researched them. Lucky I noticed this after just my Blacksmither went through the armor, and not the weapons which I have a lot more of. You would have heard the screams if this had happened with my Clothing/Woodworker
Looks like I have to go back to a spread sheet for this.
For the record, this was with an updated for patch 1.4 Research Assistant
An addon isn't broken unless it actually breaks or does not function, which has nothing whatsoever to do with the "Out Of Date" flag.