In my opinion, the issue is a lack of information of many people about the history of Italian criminal procedure, and why CPP Articles 530.2 and 533.1 were introduced. I've posted a rather long essay, mostly copied from my sources, to try to explain to those interested.
Again, the point is that the CPP Article 530.2 acquittal is not some inferior type of acquittal but a measure used to bring Italian law into consistency with the laws of other democracies, the Italian Constitution, and the European Convention on Human Rights.
I am not asking that you accept the terminology "legal innocence". I certainly don't go about using that term except in these odd discussions; I made it up specifically for such use. And that whole discussion about the meaning of "innocence" is really beside the point.
What I expect you to do, if you are supporting your position, is to show that Italian media - not PGP blogs or PGP wikis - are stating that the 530.2 acquittal of Knox and Sollecito was not a full acquittal, or that it indicates that the judges considered them guilty or maybe guilty but that there just wasn't enough evidence to justify a conviction. That is the real issue you bring up.
If, on the other hand, your position is that one or more posters predicted that Knox and Sollecito would be given a CPP Article 530.1 acquittal and that it was better before the judgment, but reversed to now saying that the 530.2 acquittal is equivalent to the 530.1 now that we've learned the verdict .... so what? I suggest that some of those who made that prediction may not have known the history of the introduction of 530.2.
There were posters who mistakenly thought the Boninsegna verdict was a 530.1 after it was issued, because of a perceived ambiguity in the text: the Italian grammatical article liaised to the words as "l'art. 530" was mistaken as being "Article 530.1"; actually, it reads "Article 530" without identifying a paragraph. (Shown correctly in the translation on
www.amandaknoxcase.com; I have posted on the mistaken reading by a poster previously.) This paragraph issue does not have the importance you and the PGP, or even some PIP, ascribe to it. The PQM of the MR reads:
Pursuant to article 530 of the Italian Code of Criminal Procedure,
acquits Knox Amanda Marie for the charge under letter a), because the facts do not exist, and for the charge under letter b), because the facts do not exist and because the act does not constitute an offense, as regards the accusations addressed to Dr. Giuliano Mignini.
Hellmann's acquittal, apparently mistaken by some PIP as being under 530.1, was actually under CPP Article 605, but used, as required by CPP Article 530, a specification, just as the Boninsegna acquittal includes two different specifications.
Again, as posters become more familiar with the real content and history of Italian criminal law, these seeming issues about the paragraphs of Article 530 will be seen to be trivialities (except to the PGP, of course).
I suggest that any verdict of acquittal that has a motivation report that discusses evidence is logically an Article 530.2 acquittal or its equivalent - that is, one based on the evaluation of evidence. In the inquisitorial system, where Article 530.1 was the criteria for acquittal, it's not clear to me that the trial judge issue a motivation report justifying the acquittal based on the evaluation of evidence. In the current Italian Constitution, the issuance of a motivation report is required (It. Const. Article 111, "All judicial decisions shall include a statement of reasons.") suggesting that even an acquittal under 530.1 must include an evaluation of the evidence; the judge cannot simply state that the person is acquitted (or "innocent", for those who think that is the verdict resulting from Article 530.1).