‘The Undoing’ is its own undoing

I really can’t believe how this turned out. This was one of the other magnum opus drama for HBO that was supposed to be a runaway success. It may have been for 77% of Rotten Tomatoes reviewers (at the time of writing) — it certainly had a big disconnect with the audience that just liked it 68% at the same time. Why so? The plot’s ending was really underwhelming.