splash was shut down for a bit on saturday, too
I think any CM around will tell you that almost every attraction goes down for some amount of time at least once a day. In most cases they are quick downtimes where very few guests are impacted. In most cases the rides are back up so quick most people never know or hear about it.
By the way just an interesting fact to point out, last year at BTM 97% of the downtimes were Guest related. CMs understand downtimes are frustrating for everyone but a vast majority of the time they are unavoidable and have absolutely nothing to do with a maintenance issue.