Originally, NLNet was *private money* given by the founders of a dutch ISP¨.
Now that this private money run out, they made a partnership with the European Commission, which is *public money* and comes with more strings attached.
Public money is eventually traced back to some elected official who has absolutely nothing to do with technology but is also very emotionally-invested in showing to the constituents that the money isn't being wasted - to the point where spending the money on something useless but concrete ("ergonomic" coffee mugs) might be deemed preferable to a long-term investment that falls on the wrong side of a term-limit.
Again, public money can be fine and completely no-strings sometimes (and, conversely, private charitable contributions can sometimes end up with plenty of strings too), but there's certainly reasons to point out the differences.