Capaldi had strong episodes throughout his run, but yes, I personally did dislike some of the storylines. The Zygon stuff felt very weak to me, and I never understood the "The Hybrid" storyline. But heaven sent/hell bent were bangers, and I definitely enjoyed his finale Cybermen episodes.
But yes, the moon suddenly reappearing in between shots, perfectly fine and identical to before, was very silly
They went ultra woke and it tanked exactly as you'd expect.
Maybe Capaldi ended on a high note. I was done with the show after the moon episode and quit watching. I couldn't keep suspending disbelief after that. It wasn't just one bad episode the whole thing felt tired.
Capaldi was a great actor and it was nice that he got some good scripts (I really liked the one where he was in Doctor Prison, great concept), but his run felt to me like a show running out of ideas.
I didn't watch the Whittaker doctor. Heard it was awful and wasn't surprised. I eventually saw the pilot and it was indeed, awful.