One thing that seems incongruous to me, is Kenobi’s general demeanor. In the OT, Guiness played the role with an upbeat personality, leading a quiet but seemingly contented life, and more than willing to reveal his Jedi skills, even on Mos Eisley. Ewan, by contrast, is really dour and bitter (unsurprisingly), and afraid to mention anything about his past even to those close to him. I wonder if the producers will make any effort to transition ObiWan from a broken and bitter middle-aged man, to the sprightly and even upbeat old wizard.
I believe this is a big part of why they made the show. He’s actually going on a character arc.