Yes they can. They can take anything they think may be evidence. Anything they might want to test to see if there is evidence contained in it or on it. Do you think that their affidavit for the warrand listed 95 bags of specific items? What they had to have applied for and somehow received was a blanket warrant. Happens all the time, though technically it is an abuse of process.
"And further, the PD has to return the warrant to the courts stating what they took or seized."
True, and under any other circumstance that return must be made public. In this case the court has chosen to seal the return, at least for now.
Which makes my point. Before everyone calls Scot's mother a liar (too late for that now) don't you think we should know what is contained in those 95 bags taken on the second warrant? Not to mention what was taken in the first warrant.