By using the obsolete software versions, it cause instability and inconsistency and a lot of effort will be wasted to workaround the issue rather than solving the real problem.
You’re fundamentally wrong here. Red Hat providing a long-term and stable operating system and software target provides stability to users of RHEL. Upgrading your operating system, system libraries and toolchain are valuable changes, and should be done periodically, but these changes, like any other, introduce instability across the change. Those risks can be mitigated, but they are risks nonetheless.