Yes the practice of having one Pastor over the entire Church is not Biblical. Paul asks Titus to appoint elders.
Titus 1-5:- The reason I left you in Crete was to set in order the remaining matters and to appoint elders in every town, as I directed you.
'Elders', the word used here is in plural. Which means there should be more than 1 person leading every Church. ALso they should be appointed not elected. Democracy of electing elders is not God's desire at all.
Also Elders should be working voluntarily not by receiving salary like a hired hand. Because they receive a salary, they try to please men than God in their sermons!
1 Peter 5:1 - Therefore, I exhort the elders among you, as your fellow elder and witness of the sufferings of Christ, and a partaker also of the glory that is to be revealed, 2 shepherd the flock of God among you, exercising oversight not under compulsion, but voluntarily, according to the will of God; and not for sordid gain, but with eagerness.
You can do more research by searching for 'Elders' in the bible.
Also regarding the congregation just being passive listeners, it is not at all Biblical.
1 Cor 14:26- What is the outcome then, brethren? When you assemble, each one has a psalm, has a teaching, has a revelation, has a tongue, has an interpretation. Let all things be done for edification. 27 If anyone speaks in a tongue, it should be by two or at the most three, and each in turn, and one must interpret; 28 but if there is no interpreter, he must keep silent in the church; and let him speak to himself and to God. 29 Let two or three prophets speak, and let the others pass judgment.
Just read the scripture and compare it to any institutional church of today. We find these scriptures not at all being applied. One might sight big number as a reason. But it is not true. I was part of Churches with over 200 people gathering, still there will be multiple speakers among the brothers. There will also be open call for prophets to share during the meetings.
Do we want to honor God's word or follow the institutional pattern? Most of them are contend to attend such institutional churches because if they step into Home Fellowship, they have to sacrifice something thing. People themselves are happy to be just be visitors in Church rather than being part of a Body of Believers.
Church is compared to a Body of Believers. In a body every part plays a role, hence in the Church as well, everyone who is committed to that body should have a function. Just one person running the show is not a church but just a gathering place or club.