Is it ever useful to use lubricating grease with EP additives anywhere on a bike?
The simple answer is no, because loads, RPMs, and temperatures on bike bearings are all relatively low. Any of the common bearing greases are fine, and if the bike ever gets ridden in wet conditions then water resistance easily becomes the most important variable factor among greases.

Whether the drawbacks of any of the EP additives might ever come into play in any bicycle application I don't know. But using common moly EP lithium grease is fine.