I agree with this.
If the memo is legit, and if the whole mess is provable (still two really big "ifs"), then Trump can't come out and step on everyone's neck and kick them in the head. If he does that, then everyone who screamed "Authoritarian Regime" will appear to be correct. It just wouldn't be politically wise.
He's be better off releasing it in drips and controlling the flow of information to keep his opponents (both Dems and Republicans) at bay. First, punish the Democrats before the midterms, then use the info to stave off impeachment (if the midterms go poorly) and gain re-election. Not that I support any particular course of action, just my two cents.