I also have tested elsewhere and have less personal need for the raw data, but I believe that others would benefit and thus would like to see Ancestry release it. In addition to the uses already mentioned, it could be analyzed using the admixture tools on Gedmatch.
I would also suggest three other features that are available elsewhere:
1. Segment comparison tool
2. Ability to find matches in common with another tester
3. Ability to search all matches for a particular surname, including both direct and collateral lines.