Nah, an insurrection is what was happening in Iraq after the 2003 invasion (and happening rightfully so).
If what occurred on J6 was an insurrection, it would have been explicitly violent or had a real organized plan for the literal overthrow of the government.
Even the ridiculous plan organized by the Proud Boys was not really an insurrection even though it involved demanding a re-vote (or a re-vote after a recount) because it ultimately wanted to preserve democratic norms, and the fools who came up with it sincerely believed that democracy was completely undermined by the last election... Which, arguably, it was.
Employing non-lethal means to occupy a place as a protest seems reasonable, doesn't it? This is what people did after the killing of George Floyd.
I am uncomfortable with the idea of being held responsible for them circulating this data - if they did not illegally obtain it, can it be said to be the case that they are violating rights by presenting it..? Unless, of course, they believed they were functioning passwords and it was part of a further operation to continue using the information to breach the company's data.
It could potentially be seen simply as verification of some element of a news story - like how we have seen the publication of names / email addresses / passwords etc. of Nazi websites be leaked, often after the sites have been taken down, simply as part of verifying that the site was legit taken down, the site was populated by actual people, etc.
I also do not think it is good to take down "far right" news media that isn't even really far right. OAN, Newsmax, etc., are certainly conservative, but what would we really be even doing if we were to take down mid-stream conservative Trumpist outlets..? Driving more people towards news sites like Unz and platforms like Gab. Make it impossible for them to have larger networks in the free marketplace of ideas, and then you drive them into the arms of smaller & more radical networks.
I am not a Leftist, but I wouldn't think of this as a leftist W unless your idea of a W is serving the short-term interests of the DNC.