> This is primarily because core is primarily a teaching ISA.

That doesn't necessarily make it all that great for industrial use, does it?

> One of the best parts about RiscV is that you can teach a freshman level architecture class or a senior level chip building project with an ISA that is actually used.

You can also do that with Intel MCS-51 (aka 8051) or even i960. And again, having an ISA easily implementable "on a knee" by a fresh graduate doesn't says anything about its other technical merits other than being "easily implementable (when done in the most primitive way possible)".