While reading through the docs about Promts, I noticed this guideline:
Note: If you’re a partner building an app that appears within Salesforce, don’t use this component.
Does it imply that I should not use this type of messaging in my managed package. If yes, then why? I really need such behavior in my app, so when a user clicks on a list view custom action button, I'd like to show a prompt if there are some system errors, e.g. the app couldn't load a list of records required for the process.