Event endpoints allow full history or specified time range
Events endpoints like https://api.twitch.tv/helix/moderation/banned/events and https://api.twitch.tv/helix/moderation/moderators/events only provide a short history of events.
This makes it difficult when a 3rd party dev takes on a new client to collect historical data from before they started offering services to the new client. Answering a question like when did I mod this mod? Is not something that can be answered without historical data.
Allowing a request for as much historical data as available (hopefully more then the current amount provided by the endpoints) or requesting for a specific time amount would allow new 3rd party dev and single custom one off developers to cache said data and provide the same level of service to new clients as they do to client they have multiple years of historical data for.