Yes totally agree. After all the hype and build up the final episode was rubbish.
Loads of people on social media saying pretty much the same thing.
I'd also been watching Safe House and that ending was dreadful too.
I'd committed to Bloodline, for it to let me down, after 23 episodes!
...but then does it really matter?
Up to the last couple of episodes of Bloodline it was good, so the hit rate for good episodes to bad, well, not to shabby.
I wouldn't mind if they never made another series of Doctor Foster, but then if they did, i'd tune in. I'd advise they leave it for at least 4 years.
...but, what'd'i know?!