Also, if I’m seeing this correctly, it only recognises ASCII “words” (a–z, A–Z, 0–9, _), so it’s not even accurate and will over-count words with accents, umlauts, etc.
IMO, here’s a lot of room for improvement for German, because it’s a real dice roll whether a compound noun will be recognised or not. You can try swiping the components individually, but then you have to go deleting spaces everywhere. Unless there’s a feature I’m missing?
This is the sort of thing I think someone would have found a better solution for if more languages (and possibly English in particular) had non-spaced compound nouns.