We have had previous discussions about this (not at my computer to look them up right now), but if a question asks about a certain jurisdiction or tags a certain jurisdiction, then the answers should actually answer the question that was asked and not a different one. In this case, I feel that a down-vote is appropriate.
From the How to answer help page:
Answer the question
Read the question carefully. What, specifically, is the question asking for? Make sure your answer provides that – or a viable
alternative. The answer can be “don’t do that”, but it should also
include “try this instead”. Any answer that gets the asker going in
the right direction is helpful, but do try to mention any limitations,
assumptions or simplifications in your answer. Brevity is acceptable,
but fuller explanations are better.
Google probably won't highly rank a question tagged EASA when someone is searching for FAA, even if it does answer their question.
The biggest problem though, is that if we try to answer it for multiple jurisdictions, where do we stop? Someone could ask about Russia next, then China, then Japan, then Fiji, then.... On and on and on. Now, even if someone finds the question, trying to find the answer that applies to them is really hard, and the up-votes do not mean what they are supposed to: That the answer actually answers the question that was asked. On the other hand, if they each have their own question and answer pair, then finding the right one is easy.
If someone feels that it will be useful for others to have the answer to a question other than the one that was asked, they can feel free to ask it themselves and then answer their own question where it is more likely to be useful for future visitors.