In Experience Space in Tridion Sites 9.5 we've greatly improved the user experience for these kind of messages.
Below is the history of changes to this idea's status. Return to the idea.
In Experience Space in Tridion Sites 9.5 we've greatly improved the user experience for these kind of messages.
Interestingly we have some of this in-context warning and validation in the Experience Manager user interface but not in the Content Manager Explorer. The newer error approach also groups up errors into a single screen during BluePrinting move up/down.
I'm setting this to Under Review to let others votes and provide feedback. This might be something we can revisit in the new Graphene UI implementation where the content entry forms should meet expectations of forms.