Well the article OP linked is very questionable, if not at least misleading
with regard to what Julian Assange actually said. Go here for what he
actually said: https://www.youtube.com/watch?v=UFFTYRWB0Tk#t=1222
And his statement is essentially the same as FSF's:
https://www.fsf.org/news/free-software-foundation-statement-on-heartbleed-vulnerability
The author of tho article (IgnorantGuru) is free to have their opinion on how
corrupted GNU/Linux developers are, but Julian Assange never said nor even
implied that Debian is either owner or in a conspiracy with the NSA. It is
solely the author's conclusion.
As to what Julian Assange said, he mentioned that Debian's package system
design (where things depend on each other) is somehow an insecure design
because all it takes is compromising one or a few packages. Does he know what
he is talking about, or is there an apparently more secure design approach to
operating systems?
Also: author seems to think Red Hat rules the GNU/Linux universe. What?