Saying XYZ "is free" or "requires 0 Minor Actions" is pretty clear.
Saying XYZ "costs a minor action then grants you a bonus minor action", as you can tell from the fact that I started this thread, is not as clear. It makes me wonder why that cumbersome process exists instead of just making the thing free, then thinking there must be some underlying reason I'm not seeing that involves some other rules because otherwise it would have just said "is free". And that started me thinking about the minor action limit, and it spiraled down from there.
So meaning "free" but saying "costs a minor action then grants you a bonus minor action"... I don't think that was a great decision.
I notice Firing Squad has some additional uses of this language, but I still haven't found any usage where it's meaningfully better to have the thing in question limited in any way instead of just being "free" or "cost 0 minor actions".
Thinking further about the one drone Take Cover case I mentioned, it's especially useless because taking cover very well might BE the last thing you'd want to do on your turn... so saying you can do it as a bonus but you're forced to have at least one minor action in reserve both before and after the Take Cover action kind of negates the point of the bonus to begin with. If it was free it would actually be useful because you could do everything you wanted and THEN take cover.
Not that I really expect any kind of official change at this point post-publication, but hey.
