I agree :)
The one email referred to in the APT case caused a stink by pretty carelessly and unneccessarily referring to "Gulf states" and I can only imagine how much more careless and unnecessary correspondence has been flying around between the PL and certain clubs in respect of City in the past fifteen years.
Maybe the club got hold of one and that was an "in" to getting disclosure of everything. It was always said the club had a "file". Who knows? Maybe that was true.
Anyway, as
@petrusha said (much) earlier in the thread it won't help much with the core issues of the case, but anything that casts doubt on the intentions of the PL or its good faith will chip away at their credibility when it comes to evidence and counter evidence.
As you say though, interesting.