Nobody’s playing chicken with Mueller. That’s kind of a silly analysis.
The issue in front of the public, is as it’s always been, did something untoward happen during the campaign that will turn Trump’s base against him enough to make impeachment the best political choice for whoever is in power in the House.
Since Mueller has no credibility with Trump;s base, and sinking credibility with the public in general, he has but one way to come out of this that will please the NeverTrumpers: that being that he has to come up with an actual crime committed by Mr Trump himself that is so heinous that it turns Trump;s base against him.
At the current time, the only scenario envisionable would be offering proof that Mr. Trump knew that the Russians were breaking the law, and said nothing. Any allegations involving the Logan Act or obstruction simply wouldn’t move the needle enough for a GOP led House to act, and if it were a Dem led House, they may act, but run the risk of repeating the error of the late 90;s, when an opposition led House brought weak charges against Mr. Clinton based on work done by a special prosecutor that Mr. Clinton's base viewed as not credible.
So, referring to your “list” above, obviously you see it as a hard, cold, steel noose slowly closing on the neck of Mr. Trump.
OTOH, Mr. Trump’s supporters see it as evidence of fecklessness; that the man has worked for a year, and all he has to show for it is that the President made the mistake of trusting untrustworthy people (which is not news; Clinton, Bush I, Reagan, and many other presidents found that some of their trusted associates weren’t so trustworthy after public light started to shine on them.)