Both Rom (Max Grodénchik) and Leeta (Chase Masterson) on Deep Space Nine were not main characters or significant recurring characters, appeared occasionally (and in fewer total episodes than either Detmer or Owo), and yet the depth of the characterization for them, where you gave a shit about what happened to them and knew who they were and what they were about is light-years different than what we've seen from the writing team at Discovery for some of their characters.
Yes, you've all beaten us to death with constantly bringing up Detmer and Owo over and over and over again. And over and over and over and over
and over again! Read you loud and clear.
But what about Culber, Stamets, Book, Kovich, Vance, Adira, Saru, Rillak, Tilly, Grey, and Cornwell? How about L'Rell and Ash? Captain Georgiou? Zora? "Etcetera, etcetera,
etcetera..." to quote Yul Brynner.
And Hell, Detmer had a storyline of her own for the first half of the third season. And, at one point, she said she couldn't stand having Stamets steal her glory whenever they used the Spore Drive because she has amazing piloting skills.
Controversial Opinion but I think Detmer is a more interesting character than Ortegas who, from what I've seen, just delivers wisecracks and tries to get Uhura to loosen up. Detmer has an ego, insecurities about her real or perceived flaws, and she's disfigured from The War, but still always keeps a smile, and doesn't lose her resolve.