I think one thing we can agree on for TMP that was bad was the bland pajama uniforms
No, you do not speak for us all. The uniforms of TMP were one of the things that attracted my eye to the movie in the first place. I loved them, wanted one of my own. Loved the boots fitting into the pants, love the Perscan device buckles.
The pastel colours and uniform styles were a conscious decision by Robert Wise and reflected the 70s' concept of "the future". The colours of the costumes and sets are reminiscent of Wise's own "The Andromeda Strain", also the space station uniforms shown at Disney's then-new EPCOT Center, and even the aliens of "The Last Starfighter".