What is the reasoning behind splitting the Creator Expert sets across multiple categories? Is it because sets are functionally limited to a theme and subtheme? It seems odd to have sets clearly labeled as such by LEGO to not be included in that category when browsed to.
For reference, I believe these are all sets labeled Creator Expert and their current categories:#10232
Palace Cinema (Advanced Models - Modular Buildings)#10233
Horizon Express (Creator - Expert)#10234
Sydney Opera House (Advanced Models - Buildings)#10235
Winter Village Market (Seasonal - Winter Village)#10241
Maersk Line Triple-E (Advanced Models - Maersk)#10242
[Mini Cooper Mk. VII (Advanced Models - Vehicles)]#10243
Parisian Restaurant (Advanced Models - Modular Buildings)#10244
Fairground Mixer (Creator - Expert)#10245
[Santa's Workshop (Seasonal - Winter Village)]
Based on the patterns here, it seems Horizon Express should be moved into Trains and Fairground Mixer into Advanced Models - Miscellaneous. While the categories would be subjective rather than based on LEGO's labeling, it would be consistent.
The ideal solution is an open-ended, "tag"-based categories system, but I realize that would likely involve a lot of work (e.g. rewriting the database structure) for something that doesn't apply to the majority of sets.