Good move, hopefully though it is just for one year and not too expensive.
Originally I wanted them to draft someone in the mid-late rounds to develop as Tannehill's backup, but realistically there are not many great draft options this year. Once it became apparent they wanted a veteran backup(the Jackson free agent visit), re-signing Moore was by far the best option.
What is funny though is that even with Moore on the market, the Jets and Bills went in different directions. Moore probably would have started for either of those teams.