When our brothers do this, they ape denominational tradition. We have some traditions in the church that are nothing more than custom. The time of meeting, the order of the service, two services on Lord's day, and the Wednesday evening gathering are all examples of human traditions. They are harmless and help to implement divine traditions, but they do not have the binding effect of Bible form and pattern. Scriptural traditions are inviolate and absolutely necessary - every one of them.
Human traditions can be fine tuned and adjusted.
We should give long and careful thought to changing the traditions of our fathers. They had good reason for doing things the way they did them, and we need to be sure we understand the thinking behind the custom before we modify it or cast it aside. That sums up traditions. We have Bible traditions, human traditions, Roman Catholic traditions, and Reformation traditions. Human traditions are okay so long as they do not violate a Bible precept.