When I was in the seminary in the late 1970’s in a very progressive seminary, quite Pope Francis, at the time and ahead of its time in the backwardness of the 1970’s we experience in the present, we were immersed in speculative theology and the heritage of Protestant liberalism of the late 1800’s, especially that brand of theology that wanted to strip the post-resurrection narrative of the New Testament and the Gospels to get back to the real, historical Jesus independent of 20/20 hindsight that the Holy Spirit brought to the sacred authors of the Gospels.
In other words, Jesus was a product of his time, probably quite unaware of His divinity and capable of growth in truth. If the historical Jesus returned to the present, he would embrace the culture, especially the ideology of inclusivity proclaimed by the secular world. This then opens the Church to radical change, because Jesus is just a dead hero and the starting point for the Church today, not the 2,000 years of Scripture and Tradition, the Deposit of Fait all built upon the illusion of a post-Resurrection Jesus which has nothing in common with His historicity.
In additon to that, the emphasis isn’t on the other world and salvation, but rather Marxist utopian eschatology to bring about the perfect world here and now. Thus one did not need to believe in the resurrection, only the historical Jesus and what he accomplished in ushering in the Kingdom now, the Church true priority.