Does any filmmaker go into a project not wanting to "entertain" the audience though? Surely anyone planning to do so would be in the wrong business.
Anyway, I guess this movie may have failed to find a target audience - the gore hounds who enjoy horror and the like are unlikely to be drawn to what probably appears to be arthouse or more high brow fare. And on the other hand, those who might appreciate the drama are probably going to be discouraged by the reports of violence and the generally grim tone. Who's left? Those familiar with the 1947 movie? How many of those are there going to be, and how many of them are going to be similarly put off by the approach adopted?
A movie like this can struggle to find an audience at the best of times, and two years into a global pandemic, off the back of a decade of financial hardship and the attendant misery of all that is arguably far from the best of times.