They never said model training is a violation of copyright. The ruling says model training on copyrighted material for analysis and research is NOT copyright infringement, but the commercial use of the resulting model is:

"When a model is deployed for purposes such as analysis or research… the outputs are unlikely to substitute for expressive works used in training. But making commercial use of vast troves of copyrighted works to produce expressive content that competes with them in existing markets, especially where this is accomplished through illegal access, goes beyond established fair use boundaries."