Oh, don’t get me wrong - all of the instances you cited (as well as a few others) were… not good at all, and completely asinine.
The primary contrast I’m drawing here is that those were bad episodes… whereas the Burn was a season-long mystery that was tied up in a neat little bow with absolute nonsensical bullshit, which frankly cheapened the impact of the season overall, and makes me roll my eyes whenever they do a callback to something Burn-related in S4. If it was confined to a single episode (like the barzan seed ship stuff I mentioned earlier), it’d be far more excusable, but in my eyes, they kinda soured the entire season by just phoning it in for what should have been one of the most important segments of the season to really nail the writing on.
All that said: it’s overall still fun; I am rewatching it right now, in preparation for S5 starting to roll in April.