The church can still be useful to God at least on some level. The early church changed the day of worship, but that did not negate the fact that God still used this church community that was degenerating into apostasy.

Here in the USA, at least, the church is more interested in itself than the message God intended to be proclaimed by this instrumentality. "Truth is fallen in the street" while the church pontificates its policies and church members are "wondering after the beast".

The fact is, the church is far more political than spiritual. And in this, the SDA church emulates the Jewish nation at the first coming of Christ. Obviously, some organization is a necessity. But spiritual issues are put in the back ground and the leaders "kick the can" down the road to some future time and the church continues to degenerate spiritually into oblivion until it is useless as God's instrumentality to finish His work.