Agreed, almost every profession has advanced to the point where they require specialization. Everything has become so complex that being a jack of all trades means you fail at them all. Even trade skills have specialization: carpenters specialize in framing or cabinetry or furniture, mechanics specialize in specific machines or sub-systems like engines or transmissions, etc.

But it seems most of the people responsible for filling these positions have t realized this yet or don’t know enough about the jobs they are hiring for.