The feedback of the TYPO3 Localization Team which I posted for the initial budget request last year is still valid:
The Localization Team will support and promote this solution, but not as the one and only official solution. There are also other tools such as the web interface, XLF upload, EXT:crowdin, etc.
So it’s up to the translators to evaluate the pros and cons of each solution and choose the one that suits them best.