First Reformed has many strengths - but why not give credit where it's due?

Paul Schrader's First Reformed (2018), starring Ethan Hawke as a middle-aged minister in an under-attended, conservative protestant (Dutch Reformed) church in upstate New York, is beautifully written, far more literary than almost any other recent American film, with particularly fine passages of long dialog, notably Hawke's long discussion with the husband of a parishioner who is clinically depressed and obsessed with the damage being done to the environment, a tense confrontation between Hawke and a major donor to the church who runs a huge factory complex perhaps reminiscent in a smaller scale of the Koch Bros enterprises, and Hawke's several discussions with a fellow minister played really well by Cedric (the Entertainer). The film really explores, in a dramatic fashion, the decisions Hawke has to make regarding prayer and faith v. direct action, even of a violent nature. The film is a rare examination of a mature adult in midlife crisis - however, a big caveat here, the end of the film, which I will not divulge, is ridiculous, over-the-top, and needlessly disturbing. How Schrader let his film get so off the rails and why he concludes on such an unearned high note is beyond my comprehension. And, despite the many strengths of this film - not the least of which is the beautifully lighted cinematography - there's another major caveat: At the very least this film should include in its opening of closing credits "inspired by Ingmar Bergman's Winter Light." Those who know that film will recognize numerous similarities in plot, design, and even dialog. There's nothing to even approach the level of plagiarism and there's nothing wrong w/ adapting a classic into a different time and place, but give credit where it's due, please. Most of the strengths and none of the weaknesses of this film come directly from Bergman's movie.