They could have done this series keeping with canon. It could center on Obi-Wan getting the inquisitors off the scent of Luke/Owen. There could still be clone wars flashbacks that haunt Obi-Wan.
I do think episode 5 at least tidied up the story a bit more to have it make sense.
With only 4 episodes they had better be 60 minutes, not the 30 minute episodes for the Mandalorean. If the total running time is around 2 hours they would have been better off making it a Disney+ movie.
Deadline reports that Ewan McGregor is in talks with Disney to reprise his role as Obi-Wan Kenobi.
https://deadline.com/2019/08/ewan-mcgregor-obi-wan-kenobi-disney-plus-star-wars-1202669319/