REVENUE SUBSCRIPTION - Request to change start and end dates

Pipedrive does not allow users to change start and end dates of revenue subscription (recurring revenue) for deals that are in the pipeline.  Pipedrive support have advised only option is to delete and create a new deal, which seems a massive oversight from product perspective.   Users should be able to change start and end date for all pipeline deals with revenue subscription, if not makes the subscription revenue feature redundant, and also impacts forecasting feature and insights reporting.