I hate to jump on peoples’ tags like this but no, this is wrong. It is IMPLICIT, not EXPLICIT. ‘Explicit’ requires detail, with absolutely no room for doubts.
What you are given in Shido’s workroom as a ‘recollection’ is anything but. There is only an indication of Goro promoting himself as a user of a Persona power, but it is not explicit in what that power is, neither is it explicit on exactly how and when he reached Shido, and by what means.
In fact, every single bit of what you’ve just said is entirely implicit, and shows that you’ve missed the point of my post: that there’s no evidence to tell you exactly what Goro was even DOING with his Persona in the first place. Hell, if Goro even HAD the rampage power before Wakaba’s death, which was the subtext of my post.
What is EXPLICIT, however, is Shido’s hand in Goro’s use of the overall power. As stated by Shido’s own Shadow, and not *just* to Goro.
There really is no questioning that fact- it alone, is the reason why Goro is even an ‘Ace’ Detective in the first place, with as much popularity that he has. Not to mention this is extremely significant in a number of ways- especially considering Shido’s hand in Metaverse research.
The point is, if there are still gaps that are questionable - such as, how the contract was even secured in the first place - then no, that is absolutely not ‘explicit’ evidence. Especially when said ‘evidence’ is given in a way that is meant to mislead you in the first place.