But someone needing money still needs to motivate the reasons-for to the money-giver. So this is perfectly valid.
I will go as a far as saying that your post portrays an ideologically skewed world-view by insinuating that wanting money is something “bad or morally tainted”.
But yes- of course the money-giver has the right to view the pros-and-cons of giving money and decide who receives it. Because the money-giver has the right to push an agenda according to their value system, by deciding who they give money to.
The open letter is about more than nixOS and appeals to the stated ideals of the EU.