I can't recall it precisely, but I'm pretty sure there wasn't 1sec un-sheathe animation back in the days (3+ years ago)
It is frustrating ... A LOT.
This is the earliest thread I could find on the subject:
https://forums.elderscrollsonline.com/en/discussion/584631/barswap-sheath-weapon-bugs#latest
Then there is this one:
https://forums.elderscrollsonline.com/en/discussion/586061/has-anyone-else-noticed-a-delay-in-skill-use-when-weapon-is-sheathed/p1
But I can't find the thread where there was a relayed dev response that stated that the current behaviour is the expected behaviour so either I dreamt that, fabricated the memory of reading that, or the thread title itself does not contain the keywords I used in the search.
TechMaybeHic wrote: »They also said something like "surprised you noticed"
I could see making this the animation for people who choose to bind a sheathe/unsheathe key for RP purposes or aesthetics. Sure, maybe it gives you a badass hero moment to stand at the edge of a fight and dramatically pull your weapons out before diving in. But any ability cast should take you immediately into the action.