It’s really a matter of taste. I like it better if Blu-rays have grain and show that the movie was shot on film and therefore I prefer the TN1 version.
I like grain on blu-rays as well. It’s a shame when it’s all scrubbed away. But I tend to prefer the more mild grain of the negative to a theatrical print. Plus TN1’s is one generation after that, as a dupe. Their IB version and other SW films have grain that’s a bit better for my eyes. But there are tons of different opinions and options, which is great.