Jimmy,
I don't know what your pic proves. Yup, alt crz engages at any altitude, but soft alt only with a mach mode.
The quote from FCOM
On reaching the planned cruise altitude, ALT CRZ engages and A/THR maintains the speed/mach target.
Two minutes after ALT CRZ engages, if the mach mode is operative, SOFT ALT mode engages. This allows the aircraft to deviate ± 50 feet from the target altitude, thereby minimizing thrust variations and reducing fuel consumption.