They do remove all binary blobs at least by the definition of the Free Software Foundation, who already recommed it:.
"The Purism Librem 5 cell phone is another exciting addition to the Giving Guide this year: we're giving it a tentative recommendation because the company has publicly committed to doing the right things for prioritizing user freedom and privacy."
https://www.fsf.org/blogs/community/ethical-tech-giving-guid...