PS5 sales down 26% YOY in the month that it got its biggest exclusive to date isn't great.
Granted, some of that will be people holding back for the slim, but I think this effect will be slightly diminished by the price increasing for the all-digital version of the slim, and the disc version not coming with a price cut as revisions often do. I'm not sure a size reduction alone is as big a draw as it is in, say, Japan.