Yes and no.
In times where it takes seconds to throw ur post into a translator at 0 costs and copy paste ur message below in english there is hardly any reason for not doing it.
I use english too so people understand me or I go to the german communities.
But now that the message has been translated in the comments it really shouln't be any problem at all :)
Also, chances are it will eliminate these edge-case-problems for everybody else in the future.
Since they will be able to add these missig functionalities to LibreOffice for everybody else to use too.