Yup. That is where the money is, it isn't in "hobbyists".

It will be interesting to see if the RISC-V efforts will allow for vendors to supply "50 year" SBCs (which is to say they are guaranteed to have pin-for-pin and bug-for-bug replacement SBCs for the period of 50 years.) That was a weapon system requirement back in the day that got waived for electronics because vendors couldn't "force" chip makers to keep making the chips they would need for repairs when there was no volume. But if you can define a socket/footprint and then drop in an FPGA "core" which can evolve but always appears to the circuit to be the same processor, that will be an interesting evolution point.

Another thing is that Arduino is focusing on is going for the mechanical engineers. This is a very lucrative market for electronics products. Just ask National Instruments and every other company that makes a PLC.

Sometimes I think NI blew it by not maturing LabView into something stronger. I've been on way too many factory floors that have their QA/Burnin rigs controlled by a rats nest of LabView modules.