You're not a lawyer
And you don't play one very well, either.
You think all indictments have every bit of the investigative background incorporated into them?
The full detailed Judiciary report can be found here. It is on this report, among others, that the Articles of Impeachment were based.
Knock yourself out.
Just curious: is this "legally flawed" Articles of Impeachment idea your own, or did you pick it up from a website somewhere?
