Weblate is still evolving and it recently got new feature to allow better overview of translation status - multi part progress bars.
The motivation to show more information is to have better overview of the translation. The numbers have been always shown withing Weblate, but making it graphical gives it much better visibility:
I'm still unsure about colors to use for highlighting different state - the failed checks should not be too different from translated strings as they might contain quite some false positives while fuzzy strings need to be really different as they absolutely need attention from translator. If you have better ideas about color scheme, please let me know!
You can see live example at Polish summary at l10n.cihar.com.