the animations are loaded at module.ini but probably present at module_items.py. Since the upcoming release contains full source, you may recompile your own flavor at your private desktop, and no longer rely on me to tweak anything. Source is not going to be "OSP", but I have no issue with tweaking on your side, off forum, to have experience you want instead of whatever I last put.
Of course, the mod is considerably larger and more intricate than I expect most people expect, and I would advise spending some time browsing the excel files I will provide both to bookmark every script name and their relative location in the source, every menu, most dialogs, every trigger/simple trigger and text for fast searching to locate each item, and a separate excel file for all the database layouts for each type, with a few thousand (really!) entries at each file. I wish I had those tools years ago, but in the last 6 years I managed to forget where everything was and had to start from the beginning again. It will be much easier for you than it ever was for me.
Should take you about 30 minutes to prep your first compile, counting installing python 2.7.anything and telling it to add itself to your path (I'll leave a screenshot how to set it up).
edit: I show upstab animations as removed at modmerger_options.py for v158 A series, so this issue may be v156ish.