This may be true, but it is ridiculously cynical to think this is the main reason to add instructions to a processor. Every vendor I'm aware of for CPUs, GPUs, and other kinds of processors, are all adding instructions for ML workloads, and they often really do help a lot.
Also, if you think that ARM and x86 have parity in support for instructions, you are off your rocker.
Also, if you think that ARM and x86 have parity in support for instructions, you are off your rocker.