Jezus.
Guys, there is a difference between:
1) how something looks and
2) what something is.
When Enterprise first aired, it looked "way more advanced" than Kirk or all the TNG-era series. In fact, if you just looked at promo pics and the starship design, there were many people claiming "this is not prime Trek".
Now, nobody would make that claim.
Enterprise has been firmly established into prime canon, not by the looks of it, but by the stories it told.
And now Discovery comes out. It looks completely different than what came before. As a new series should. But we have confirmation from the producers that this is, indeed, a true prequel to TOS and will tell the "story before". Just like ENT was. This is not the first time this is happening. This has happened before.
Of course many things have been "re-imagined". But only by looks. Is it really, truly, canon and prime? We don't know 100% yet. We will really only know for sure when the stories unfold before our eyes. But we have a promise by the producers. That might be broken, or change at some time in the future. But, as of now, we have no reason to blend out reality and distrust everyone and everything involved with production.
Just because the new uniforms look different.