Kenobi - Finale (Spoilers)

"zatho;c-2368368" wrote:
It was a click-bait. You expected the great Obi-Wan Kenobi but in the end he was just average

At least he was in 5 of 6 episodes.
I don't really understand what Obi Wan and Vader want to achieve. Both had the chance to kill each other. Vader has to find Kenobi again and Kenobi has to go back into hiding.

I know they can't kill each other without destroying kanon, as they could not kill GI