And withdrew it in 2016...
The stuff I did find was only tangentially related and not indicative of any changes in position, eg
https://stallman.org/archives/2016-jul-oct.html#16_September...
https://stallman.org/archives/2016-jul-oct.html#12_September...
https://stallman.org/archives/2016-jul-oct.html#15_July_2016...
But even if he hadn't changed his opinion there would be nothing wrong with that imo.