It was a cute little video intended to show off Larian in a human light. One of the things they're most praised about online for BG3 is the way they've given the player so many avenues and choices. Plenty of players like that they can skip Shadowheart and see her show up later at the druid's grove.
And if you manage to keep ignoring SH up to the goblin camp, she "follows" you anyway so that the box can provide protection when needed. I've not tried ignoring her again after that important cutscene. I wonder what happens if you do that?
This video showcases that work. It does so in a somewhat humble and humorous way, illustrating the size of the workload they've tackled while admitting that they still have to rely on the occasional clumsy and heavy handed scene if the player actively ignores every other obvious path.
What I suspect they weren't doing was asking for advice from every armchair game designer on the planet.
Yes, Larian seem to prefer "push" communications rather than interactive. I guess here Swen is trying to highlight the sorts of dev issues that take time, perhaps to try to cool the criticism about the lengthy EA period. Personally, I prefer to wait for the game to be ready, rather than play yet another unfinished game release.