In that case shouldn't the pages be reformulated to be more clear then? Since the FAQ says that existing outside of time and/or space would most often overlap with abilities like Acausality, and then gives the example that Dormammu is vulnerable to time-based abilities due to his timeless nature, and that's wrong since he himself isn't timeless but just the Dark Dimension, in fact what Doctor Strange did was introduce time into the Dark Dimension to imprison Dormammu. Then, according to its page, BDE is a state of being of characters who exist outside, and are independent of, space and time, and the Watcher qualifies for it based on that definition since he exists outside of the planes of time and space of the Multiverse, which already contains dimensions outside of time and/or space, or Acausality according to the FAQ