You're not making an argument. You're trying to pass an opinion as a fact. You need to back up statements like that.
Regardless of whether or not anything was exaggerated, it's still a partisan, political document. The contents don't change that. This would still be the case if it was a "Minority Staff Report" too...
That of the two major parties, the report is authored by the one with a far more adversarial relationship wwith the truth is also worth mentioning.
Not that the report mightn't contain elements of reality. But this is also likely to be as critical of the opposing part and politically beneficial to the authoring party as possible .
The fact is that this isn't a bipartisan and balanced (possibly, yes, to the point of compromise) report. That is not an opinion.
Tptacek hasn't argued the contents are specifically flawed. But the impartiality of the authors is certainly suspect on well-founded grounds.