Nope; the dissenting comments have been suppressed in exactly the way described (mine once was, when I pointed out, that some people aren't allowed as much liberty as the others when commenting and that comments inappropriate when addressed at PJ stopped to be so inappropriate when addressed at, let's say, Miguel de Icaza).
I wouldn't know that the comment has been disappeared if not for viewing the article without logging in. Clever indeed.
It's important to realise, that PJ is no saint, she can be indeed highly biased at times and she does have her pet peeves; most of that is visible in her comments, usually. (Bruce Byfield is quite right that the overall quality of Groklaw deteriorated after 2008.)
And it's equally important to understand, that all of the (valid) complaints are mostly of no consequence when it comes to the quality of her work (explaining legal issues, showing how the legal procedures work, etc. etc.)
And, frankly, the venerable Mr. Mueller here is much more venomous than PJ; his style is more similar to the Sam Varghese / Roy Schestowitz type of venom-spitting and hatred-inducing writings.