In fact, it was fairly well reported at the time that they were quite a ways down the road with the designs and construction using the TNG colours before someone pointed out that to be closer to TOS they needed to flip the burgundy and mustard so that command had yellow and operations/services had red...! That's the reason that the Enterprise-era admiral uniforms still have burgundy division colour around the shoulders instead of gold -- they just never bothered to go back and rectify those, even though, to be correct, they should really have been changed to the mustard yellow, the same as Archer...!
Wow, I never noticed this! There really was a curious lack of effort involved in that show in some respects. The infamous Akiraprise, the rush to introduce not only TOS but TNG-level tech. Yet in other aspects (NX-01's detailing, the uniforms, the sets) they did great.
The blue of the original Disco uniforms does, broadly, suggest an evolution from the ENT-era flight suits. Whether there were meant to be any intermediary stages we may never know...
The issue with that is 'The Cage' taking place in the same timeframe, but I guess if we pretend those uniforms are somehow the ones from DSC season 2 on board Enterprise, it still works.