I don’t really see this as that serious a problem. The carousel is quite short and there is ample time to go through it dozens of times before the festival is over. Just speaking anecdotally, I was able to get almost all the unique items I was missing from my three accounts in my morning session today.
I could see this being more of an issue if, say, each dig site had a unique set of rewards and you had to split your time among all five in order to get everything. But happily, that isn’t the case.
edited by hwoosh on 7/20/2021