I believe it was caused by fear. This fear was brought on by a lack of understanding and faith. Apostles are not positional labels or governmental titles. They are foundational functions that bring strength to the church and a foundation to the Kingdom of God. Misunderstanding always brings fear.
Apostolic authority comes only by relationship.
Apostolic anointing is a gift, a function, not a position of authority, or place of ministry. It is what Christ chose to bring growth and maturity to His body. Post denominationalism is a key term for this time. Denominations are a great part of God s Kingdom. Each separate body must hold fast to the doctrines that made it strong, while letting go of man-made traditions.