So anyone can claim ‘apostolic authority’ in your view? And anyone who does can ‘call out’ a ‘church’?
Nope, only those who are called to be pastors, either by a church already assembled, or by others who are already pastors who are involved in ordaining them, as directed by the Holy Spirit.
I suspect your main problem with what I'm saying is that it presupposes that pastors can be ordained with spiritual authority, while yet not being part of the Roman Catholic hierarchy?
Yes, Paul and other apostles went around, ordaining men to be pastors. These men (Titus, for example), ordained men as well. But we see nothing that demands that those ordained derive their authority from the stamp of approval of the Catholic system.