[Edit: There were some unintended implications in my original post that I felt were distracting/unproductive, edits have been applied in bold and brackets.]
The rules for missed opportunities are:
QuotePlayers are expected to follow the game’s rules, remembering to perform actions and use card effects when indicated. It is each player’s responsibility to maintain a proper game state, and to ensure that all mandatory abilities and game steps are acknowledged. If a player forgets to use an effect during the timing specified by that effect, that player cannot retroactively use it without the consent of their opponent.
Most people read the 2nd sentence and seem to interpret that as meaning that non-optional effects can and should be applied retroactively even when they are missed so as to "ensure that all mandatory abilities and game steps are acknowledged". However, the following sentence explicitly forbids and retroactive application of effects that were not used during the correct timing window without the consent of the opponent, and importantly does not distinguish between optional and mandatory effects. To me that negates any interpretation that the preceding sentence somehow allows for retroactive application of missed effects against the consent of the opponent, similar in concept to how "can't" abilities always trump "can" abilities (not saying that rule applies here, just comparing that they use the same logic).
The "consent of their opponent" clause in there is very important because it creates a release valve for allowing players to make sure that their opponents aren't scummily rushing past their detrimental abilities and then try to claim that the timing window was missed so they don't have to suffer from it. The opponent can catch it and retroactively apply the effect as needed. Also it leaves the door open to the opponent if they want to play a more lenient relaxed game (though there's nothing stopping their opponent from backstabbing them when the shoe's on the other foot).
This thought came to me because there was a recent Gold Squadron stream from the Texas SOS where edit:[The commentator who was authorized by tournament officials to intervene in an incorrect game state] , informed by the audience chat, interrupted a game to inform a player after dice had been rolled that they had forgotten to apply their range 1 attack bonus, and this didn't feel right to me. His reasoning for doing this was that the range 1 bonus was a mandatory effect (which is actually debatable based on the rules reference, separate topic though) and therefore he was obligated to intervene to maintain a correct game state.
First I want to clarify that I'm not trying to throw shade at [ Dion or Gold Squadron or anyone who streams and provides live commentary or offers their time to judge at X-Wing tournaments , these are all good people acting in good faith and a huge asset to the x-wing community.] So don't go there.
Edit: I said some stuff here about streamed games and spectators that wasn't relevant to my original point and decided to remove it.
And finally, the reason for this post, it feels like edit: [a judge/official] allowing a player to retroactively apply an effect that was missed, and even actively reminding players of those missed effects, without the consent of their opponent is going against the word of the missed opportunity rule and also undermines the idea behind that rule which is that knowing how your cards work and how to correctly use them at the correct time is a skill that should matter in a competitive setting.
Again, not an attack on [removed] anyone who has been applying the rules one way or another while acting in good faith, just throwing this out there for discussion. Would love to hear people's thoughts on this, especially if I'm way off base and missing something other than the 2nd sentence in the MO rule about ensuring all mandatory abilities are acknowledged.
Edited by Tvboy