> - If I don’t hear back from you in [N] days, I am not going to do XYZ, considering you don't deem it to be important.
It's still needlessly confrontational. Why are you accusing someone of failing to understand the importance of something?
Ask yourself this: do you need someone else's input? If you do not need it, you do not need to ask questions. If you feel the need to request input then in the very least you need to reach out to them in a way you value their input.
The problem is that, sometimes, "no input" looks very much like "I have input, but I haven't had the time to give it", so you end up waiting for nothing. This way you put the responsibility on the other person, to say "please don't do this yet, I'll explain soon why not" instead of just staying silent.
> I consider it an extension of, "it's easier to ask for forgiveness than permission."
It's not. The key difference is that you're needlessly throwing blanket accusations towards other stakeholders. Is there a way to ask for forgiveness without throwing people under the bus?
It's still needlessly confrontational. Why are you accusing someone of failing to understand the importance of something?
Ask yourself this: do you need someone else's input? If you do not need it, you do not need to ask questions. If you feel the need to request input then in the very least you need to reach out to them in a way you value their input.