Rhythmic freedom and spontaneity in the phrasing of an existing melody or in improvisation can make much bigger impact on the audience than singing or playing the most sophisticated melody lines with repetitive and predictable rhythmic patterns. Performing harmonically correct notes without rhythmic strength is less interesting for the audience. On the other hand, rhythmically strong musicians are perceived as better, no matter what notes they play or sing.
Rhythmic sensitivity, like everything else, can be developed. However, from our observation, it’s not given enough importance in European higher education.
In our institution the subject of rhythm is mostly addressed using traditional instructions, often directly connected to the instrument and not to the body as a vessel for the sound production