When "In the Mirror, Darkly" first aired, someone from this board was talking to me over chat, and he said that he thought the Defiant -- basically a stand-in for the original Enterprise -- looked horribly dated and out-of-place. He was trying to soften the blow, as he was saying it, because he knew how big of a TOS Fan I was (and am). I told him not to worry about it. I get it. Then I took a look at the episode thread in the ENT Forum and they were (as usual) fighting about everything. And one camp of posters was screaming (because what else did they do?) about how dated the Defiant looked while the other camp was defending its look as if the fate of entire world depended on it.
Long story short, not everyone was enamored or just accepted the look of the TOS Era in 2005. Some people here are trying to make it sound like that was the case. But it wasn't.
Even with the production of ENT itself, I rented the DVD from Netlix in 2010 when I started my original binge of the series (before I found another/easier way to binge the rest of it online), and watched the commentary for "Broken Bow". Rick Berman was talking about how they had to figure out how to split the difference between calling back to TOS and still making it look like a show from 2001.
In 1996, with "Trials and Tribble-ations", everyone knew it was a fun look back. It wasn't this serious thing. The outdated look of TOS was a major part of the episode's charm. Before someone tries to twist that into something they know I didn't mean, they were warmly embracing the series warts-and-all. It was self-aware. And that's a big part of what I liked about it. But Niners online didn't think, "Oh! This works today!" I didn't think, "Oh! This works today for something more serious!"
In 1992, I wasn't online yet, but with "Relics", the whole point was Scotty was looking back. TUC just came out not even a year earlier. Scotty revisiting the Enterprise-A bridge wouldn't have given the feel they were going for. So they showed the TOS bridge.
I don't think in 1992, 1996, or 2005 -- like others have said -- that they would've based an ENTIRE SERIES on how things looked in TOS. As in exactly how things looked in TOS. To say otherwise is looking back at the '90s and '00s through a revisionist lens. Robert Wise didn't even think the TOS Look worked in 1978, when they filmed the bulk of TMP.
Strange New Worlds will probably be a lot closer to the look of TOS than Discovery was. It still won't be TOS, but it'll try to evoke that look more closely, if the Enterprise and the uniforms are anything to go by. And for what SNW is trying to be, that's good enough for me. If I want to watch recreated TOS, that's what Star Trek Continues is for. Or better yet, I'll just watch TOS itself.
EDITED TO ADD: When I was creating the FAQ for the TOS Forum (you can still see the last version I wrote pinned at the top of the forum today), in an early draft in 2004, I was asking posters for suggestions for what to put in the FAQ. One of the posters -- I'm not going to say who -- told me I should put in the question "Does TOS look cheesy?" and he provided the answer to go with the question of "No, not at all..." and went into why.
I told him I wasn't going to include the question because it was opinion-based. Which was a cover for what I was really thinking but wouldn't say (because I was moderating the forum at the time!), which was: I didn't know if I actually agreed with him. In addition to the flashing-blinking lights, lack of detail, and other elements, we have Earth with no clouds. The show was what it was, and I love the show, and it has a very unique style, but it's not some Visual Pillar.