Not just you. It feels like they're taping a new story over the original one. I've said it before, this series should have ended when Alan stopped being an adventurer and became a Holy King.
If they really wanted to make...whatever this story is now, they could have made a mini-series featuring these two guys while they let the author cook and figure out how to bring Alan back into the story (or do a time-skip and have the son carry on his work).