From what I have seen, it is quite methodical.
Apparently, it was conducted that way so that evidence would not be destroyed.
How many times are doors knocked in and SWAT teams search a house in the middle of the night? That happens all the time under certain circumstances where there is sufficient evidence of criminal activity and evidence may be destroyed.
There have been numerous indictments as a result of that raid and other portions of the investigation.
Your link does not work, but I found the article.
Jarrett's reasoning in light of the Special Counsel authorization is silly. Manafort was connected with the Trump campaign, and he has longstanding ties to Russia. That didn't start in 2016, when Manafort volunteered to take over Trump's campaign. It is obviously relevant to look at what Manafort was doing before he joined the Trump campaign.
Editorial bluster is no substitute for facts.