Status changes in fixed workflows driven by other workflows

Dear Team. Changing from flexible workflows, we are about to introduce a fixed workflow for our idea promotion and epic creation process in order to support better our requirements and approval gathering needs. Once an idea (with fixed workflow) is accepted for development, it will be promoted to an epic (with fixed workflow) which will be decomposed further to features (still having flexible workflow). During testing I discovered that once my epic's status is set to the first value in the Shipped category, corresponding idea won't be changed likewise. Reaching out your support it has been confirmed that this can work only with flexible workflows. We have managed to find a workaround but on the long term, would you be so kind to consider the same nature in the fixed workflows like the flexible ones have in terms of status changes? Thank you very much.