I can understand why RHEL would still ship ancient PHP versions to keep legacy apps running, but I think WireGuard would be an easier sell considering it's so unobtrusive and has no legacy software to worry about breaking.
The problem is "RHEL doesn't also ship newer PHP as an alternative and you need to instead rely on third-party repositories".
For CentOS and friends there is https://www.softwarecollections.org/en/
https://access.redhat.com/products/Red_Hat_Enterprise_Linux/... are maintained by RedHat directly.