Earlier quoted context omitted.
There's one thing none of those have that PHP has: Work with off-the-shelf managed hosting.
This is something programmers will never appreciate, and every small business on earth has already encountered Go build your client's new website in go, and then spend 80 hours trying to make it work with their $5/month hosting
Let's say my friend runs a store. He needs a website. I can:
1. Find a $5 a month shared hiding plan. As it's Shared, they don't let you start servers, so go (as well as python) is out of the picture (unless you run it as a CGI - yuck). You develops the site, sell it to him, and fix on contract. You never have to do another thing for him.
2. Get a $5 a month VPS, spend another $1 a month (or more) on an S3 backup. Ensure said backup works (try it out once in a while). Keep OS up to date.
Which is easier? Which is more maintainable?
Does anyone think that if WordPress was written in Python it would get nearly as much traction?
That's why PHP won the internet (and that VPSs were extremely expensive until a about a decade ago) - servlets where around for a long time but you couldn't run it on a shared server - made it dead on arrival.