https://www.musical-u.com/learn/musicality-means-having-good-rhythm/
Keeping good rhythm is simply part of developing good musicianship.
We’ve all seen them – wild and crazy drummers that are playing contrasting polyrhythms with each limb in a seamless explosion of rhythmic energy. Maybe it’s the jazz pianist whose magical hands can turn a beat inside and out with fluid perfection or the orchestra conductor who somehow manages to keep eighty musicians playing together in time no matter how maddening the tempo.
It may seem that the musicality that these musicians have comes straight out of the stratosphere and is unreachable, but the reality they have all developed good rhythm.