maybe You don’t know (much ) older versions like 0.20.0. There the import backup function really does the job!
I find it complicated (and some what confusing) to first deinstall, then install, then import.
In my case I needed to export the backup to make some tweaks into the database at PC.
In that situation was strange to me to first deinstall the app to import again.
Even for normal users I think it’s strange to deinstall the app to import a backup. In standard case You’re only doing a roll back of the data with that function.
Maybe there is a techincal reason (?) for forcing that workflow!
I mean deinstall the app deletes all data of the app, but on the other hand this could be reached by a proper delete function too.
I think old workflow was more self explaining than now.
And what If you only want to import and don’t have an apk or other install source?
Then import backup is impossible now any more!