The reason why I mention this is, there are those of us who need new PHP versions to keep up with advances in features and library/application version requirements, and there are those that need to maintain a constant set of existing websites whilst reducing the maintenance costs (e.g. development resources for fixing bugs caused by non-critical bug-fix updates, less frequent migrations to new servers).

So there’s a case for hosting companies providing new PHP versions, and a case for providing stable PHP versions, and I don’t think either should be ignored. The right balance would allow a company to use what best fits their business need.