Community
Realizing this is an old post, to answer kwihae's question, there is not a way to control split face line visibility globally or by view. However, there is a request for this ability on the ideas board. Here's the link if you'd like to vote for it:
https://forums.autodesk.com/t5/revit-ideas/ability-to-hide-split-face-lines/idi-p/7357340