I've always thought that the original Personal Story doesn't really do justice to all the content locked behind expansions as it's rather boring.
LS2 is a trailer to HoT, so why is the trailer locked behind a paywall? I think making all of LS2 free would be a pretty good idea as that's where the story starts to pick up. It would convince more new players to buy HoT and eventually other Living World Seasons and Expansions.
It will also help populate maps such as Dry Top as people will need to farm for Geodes for Mawdrey.