My question was just a question, I wasn't "questioning your reasons", just wondering what they were.
From my understanding, this "move to SD" as it was implemented on older devices would just move the apps from internal storage to SD, which in fact would be internal SD and as such not free up any space internally at all, but just move the app somewhere else on the same partition.
Except if Samsung implemented a "real" move to external SD... Never checked that (I just ran Sammy ROM waiting for an AOSP alternative), that's the only reason I asked.
Also access to external SD cards is a lot slower than access to internal (even on a fast SD), but I suppose you'd only move out apps you don't use a lot.
JP.