This is sensible.
I suspect the mods would say they already believe they have established that the player who has been punished deserved it though? We (the spectators if you like) are actually the only people who are not privy to the full facts of the individual case. The perpetrator of said offence is hardly going to hold their hands up in public and tell us the whole truth if it makes them look bad.
The mods don’t need to publish everything to Avoid opening up any sort of kangaroo court, they would probably say “I have seen the evidence and I am happy with the conclusion”.
We are assuming this hasn’t happened but the truth is for all we know they could be bang-to-rights!!
Apologies mate, I don't think I was clear. I didn't mean the accused player should be allowed to defend themselves publicly, I meant that the mods should open a discussion ticket with the accused player (but only if it is not a clear cut spam case). My thinking was, the player should be confronted by the mod, stating that there are some specific actions here that are questionable under the Fair Play guidance. However, the case is not clear cut. Something like this- "please attempt to explain the strategy and tactical thinking behind these actions that are consistent with the Fair Play Guidance." With a reference to the questionable actions (like attacks or something).
So basically, this is how a mod would make a ticket for a player based on literally any other rule violation, where the rule being broken is specifically referenced, as well as the offending action. Example, I have gotten warnings for explicit content in my profile before. In the warning ticket, I was given my exact actions that were against the rules, the specific rule I was breaking was linked, referenced, AND pasted into the ticket. I was given time to correct the issue in that case, and I was respectfully allowed to plead my case and ask questions about the rule. I haven't seen anything like that for "Fair Play Violations" because it doesn't exist. Also, there is no opportunity for a player to even plead the case here, all mod responses have essentially been; "Just do better," which is frankly ridiculous and utterly lazy. There is no consistency between how mods address fair play violations and actual rule violations.
Also since there is actually not even really a Fair Play guidance, they should actually work on making it, with clear guidelines. The decision to discipline and to what degree still completely rests with the mod, this just provides an opportunity for a player to possibly defend or explain the value of their actions privately, since not everyone uses the same tactics and strategies. I have definitely picked up on different grepo strategies the hard way, thinking it was spam/stupid attacks only to get cleared of my troops or outsmarted.