Actually, in today's society and in most churches, the organ has become the dominant instruments and those who plays it does so in a loud manner. The organ is an acommpanying instruments which is best utilized for those fill-ins which makes the song richer. The piano is the instrument that is used to provide sweet sound, flavor and poise.
When one thinks of a orchestra, think of the many different instruments within it, but at times, each one has its set sound in which it can be heard over the other instruments. Organists, now-a-days, are too fancy, which is good at times, but learn to accompany the singer and not lead them into what you know and how you want them to sing it.
In other words, it is a meaningful instrument if played properly.
