I would enjoy them, but they don't make sense, are completely forgotten and have no real impact on the story or the context of the film.

I love the nightmare scenes.
I had seen it mentioned on this forum, so I knew what was coming. I used the opportunity to watch my girlfriend's reaction to them. The look of "WTF is this" on her face was most amusing.
I wouldn't watch it again though.

I could enjoy them if I cut them entirely out of the context of the surrounding movie, but in that context their implications are dumb as all hell.
Doctor Strange: One of Marvel's Best

I like how Batman completely forgets about this when he learns that some people have the same names. It's quite a stunning revelation.

The sad part it basically repeats what takes place in the film for no real reason other than Zack using CGI.

What ideas
Other than how to f@ck up a movie with one scene
Nightmare sequence was trash

That's only because of how it was placed. That scene basically opens doors for multiple ideas

They just don't have a place in this story. They don't affect the plot or the characters. They just waste time so Zack can put in some cool shots and WB has an excuse to design a couple more action figures.
If you can't defend a movie without bashing another, you will be put on ignore. No exceptions.