Uh no, this is actually more like the man plastering the city with "all is well" posters: that the tension between CMB and SN determinations of the Hubble const

Uh no, this is actually more like the man plastering the city with "all is well" posters: that the tension between CMB and SN determinations of the Hubble constant will be resolved by fixing some tricky detail in the analysis is the most mainstream expectation out there. The tension has been there for a long time, but its only something like two years ago that the statistical errors got small enough you had to somewhat seriously consider there could be some important reason for the disagreement.