Tech is an industry in particular that is into fads a lot. If you aren't experienced in the latest fad, out the door ya go! The problems suffered by the Tech industry is self inflicted.
Coding skills are coding skills. Skill comes from experience, not school.
When you hire some green engineer out of school, they can't solder, they can't handle screwdriver safely, they can't handle machine equipment safety. They don't know how to weld, they don't know how to properly identify pin 1 on a chip, they don't know electronic construction techniques.
They have to be taught all this on the job.
Kids coming out of school can't code their way out of a wet paper bag.
Coding too comes with experience.
New plumber or electrician? These guys know nothing. You start 'em sorting parts in the truck, so they know what they are. THEN you give 'em a simple fixture to plumb, or some outlets to wire, but only AFTER you show them exactly what to do and then watch them actually do it for themselves.
It takes time. If a business wants to hire someone that will hit the ground running, they had better hire someone with extensive experience.