Nah, Palp cameo was well placed. It served as a reminder to Vader and the audience that he is just Palps puppet.
My issue with finale was that the first 25/46 mins were action, the rest was ending. Also, their fight was stupid - Vader once again had him beaten but walked away. Suddenly Obi-Wan finds the force again and makes Vader look weak. The only reason he won in ROTS was because of Vaders recklessness, but here in a straight fight he won easily. And could have killed him, ended Vaders torment but walked away - STUPID!
Making a TV series instead of a Movie sounds good on paper, but in reality, if you only make 5-6 45 minute episodes then what's the point? These episodes didn't have room to really tell an extended story or to "breathe".
Also, the Star Destroyer being unable to destroy a passenger ship or launch any fighters was DUMB
Oh and once again, Jogger can't act.