I have quite the same amount of backlight bleeding on my 2015 MBP 15". It sucks, but I got use to it. It's not noticable 99,5% of time.
But I still don't think it's acceptable to buy $2000+ machine and have problems like this, Apple QA just sucks. I was just a little worried (which is ridiculous) I would get another problem with the replaced screen (dead pixels, yellow tint, staining), so I told myself I will leave it as it is.