It’s a method used by Jesus Christ Himself when He stated He would build His Church upon the rock God the Father had provided. Likewise, we build our faith not by ourselves or any man, but by what God Provides. His Word is given as our bread, which we intake through fellowship with Him. God the Holy Spirit then processes that via our spirit to sanctify our soul.
The RCC also has the opportunity to obey Him by supporting those with the gift of Pastor-Teacher, instead of constructing worldly counterfeit orders to substitute His Plan for their worldly desires. The more they rely upon Tradition, the less they rely upon God alone and His Plan.
Christ did not teach sola scriptura. Nor does the doctrine pass it’s own test. It is unscriptural and can only be declared by someone not using scripture alone. It’s a tradition that began with Luther.