> why those are legitimate things to insist on protection against
Because there is a track record of this things happening and damaging the projects.
> Surely a free software license couldn't say "it's forbidden to run this program on iOS"
Restrictions like "don't be evil, don't use it inside NSA" can be either too vague to be applicable, easy to circumvent, legally inapplicable or nonsensical.
E.g. in many countries some institutions including military are not restricted by copyright law.
On top of that, shipping a distribution with thousands of different licenses would be a nightmare.
Because there is a track record of this things happening and damaging the projects.
> Surely a free software license couldn't say "it's forbidden to run this program on iOS"
Restrictions like "don't be evil, don't use it inside NSA" can be either too vague to be applicable, easy to circumvent, legally inapplicable or nonsensical. E.g. in many countries some institutions including military are not restricted by copyright law.
On top of that, shipping a distribution with thousands of different licenses would be a nightmare.