Agreed. I didn't find modal realism terribly shocking, and I learned of it / semi-independently figured out my own version of it before I had heard of much >SL2 stuff.

Then again, I seem to have gone straight from SL1 to SL4, with no discomfort. Maybe I'm just hard to shock? Even so, putting myself in the shoes of someone who needs to gradually move up through the shock levels, I don't think modal realism would be higher than the Singularity; at most I'd put it alongside it at SL4.