If you've only had exposure to one corner of the software industry then it's very easy to develop blinders. Not saying that this is what parent is guilty of but as somebody who has regrettably had this particular problem in the (thankfully distant) past I feel compelled to point out that this type of ignorance is sometimes just a side effect of one's circumstances.

As an example PHP still powers something like 75% of web sites and I've never once used it professionally. If I didn't know better I might think it dead.