Regarding the plotholes. Ive seen tv shows so bad they fried my receptors to bad plot. I am able to forgive a really big amount of logic holes, plot holes too. So im ok with what went down, i wasnt that much invested in it.
Regarding Amos, the whole earth asteroid bombardment was handled way better in the books, i had a feeling the fallout was way more ugly and had long term catastrophical impact. In the tv series it was ehh.. I like Amos thou, Peaches too, so im ok with that. I also like how he trolled Holden at the end, that was good. So ill consider the whole journey time well spent/watched.
Regarding Drummer. She is without a doubt a ... somewhat chaotic character. She is a hardass to her core but she had to make some decisions that were ripping her apart. I dont see her arc as well written, also the dead crewmember at the end made me laugh. Of course a petty maniac with a narcissius complex like Inaros would retaliate on a personal level, its his whole shtick. Her ex girlfriend was dumb as fak thou.
Also, regarding Wandavision.. i recommend watching the next episode, they do pick up nicely. Still, its all your mileage may vary, and i do have a somewhat skewed reception.