The FSF calls it a "free license" [1] and I don't think they would if they didn't make the source code available.
Source code available is necessary but not sufficient for Free software, see [2]
> Freedoms 1 and 3 require source code to be available because studying and modifying software without its source code can range from highly impractical to nearly impossible.
I'm not an expert, but I very much doubt this.
The FSF calls it a "free license" [1] and I don't think they would if they didn't make the source code available.
Source code available is necessary but not sufficient for Free software, see [2]
> Freedoms 1 and 3 require source code to be available because studying and modifying software without its source code can range from highly impractical to nearly impossible.
[1] https://www.gnu.org/licenses/license-list.en.html#Expat
[2] https://en.wikipedia.org/wiki/Free_software
EDIT Oh sorry, you mean for the LICENSE to be available. Never mind then.