Try 6 instead.
MKL_DEBUG_CPU_TYPE=6 /Applications/Logic\ Pro\ X.app/Contents/MacOS/Logic\ Pro\ X
Most waves plugins will work but NOT these heavily Intel AVX256/512 ones :- Abbey Road Chambers, IR-L, H Reverb Plugins, AR TG, CLA Bass, CLA Echosphere, CLA Mixdown, CLA Epic, EFKramer Delay/ GT/...