Normally I dismiss the YouTube commentators because all they seem to want to do is spew hate all over Discovery, but, this is one video that I actually have to agree with.
Discovery does have big, sweeping emotional moments that weren't earned and Airiam was the most glaring example of this. We saw the character several times in the background and even heard her speak in several key scenes, but to center an entire episode on her for the sole purpose of killing her off was poor writing, I'm sorry. We were given roughly 40 minutes to care about her before she died. I wanted to know more about her all along. She looked to be an interesting recurring character that I wanted to see some focus on or even make her one of the regulars. She seemed like an interesting Data-like character that could've added something to the cast of regulars.
I think part of the problem Discovery has is that it lacks a supporting cast. When I stop and think about who the main characters are, you have Burnham, Stamets, Tilly, Culber, and Saru as regulars. The supporting cast is recurring and they hardly are given any screen time. Before this season began, I didn't even know their names and, based off the scene in the first episode of the season where Pike asks for a roll call, it seemed like this season was going to address that problem by bringing them more to the forefront. I mean, hell, one of them was even a main player in the second episode.
But it didn't. And because of this, when we see them recording their goodbye messages to their families in the season finale, there was absolutely ZERO emotional weight to it.
Sure, they got a little more screentime than last season, but, not by much. The big, sweeping emotional moments seem to feature characters that we barely spent any time with or (and this is just an opinion of my own) are just uninteresting. Sorry, but, I just think Tyler doesn't work as a character. His arc in the first season, which was interesting, seemed resolved at the end and we wouldn't see him again. He had no business being in this season at all and added nothing but unnecessary complications to things that only made me hate his character. And I really don't fully understand the poorly-written on/off relationship with Michael. And that only made their goodbye scene bereft of any sentiment.
Take this moment from TNG's Family. This works for several reasons; mostly because this was Trek giving a character emotional continuity from one episode to the next. And also because up to this point, Picard was a bit of a stiff, almost emotionless character who had a life-altering experience. Picard couldn't have gone back to being the character we saw him as in the first three seasons. It all culminated in him having a breakdown. There were three seasons building to this moment.
The problem is Discovery wants to do THIS in nearly every episode.