It is unclear to me that ANY party has taken any steps to remove partisanship in the Senate.

They might have removed words, but it remains far from clear to me if they have removed partisanship.

Besides removing partisanship now means that Senators are COMPLETELY unaccountable.  At least with a partisan Senate you can hold them to account by proxy via the party that appointed them.  The last thing we need in our Senate is even less accountability.