I actually like the shorter answer that FP sucks, which is why it's EOL'ed, and the clients that are asking for FP extensions, need to be politely informed that they will no longer be able to use them after a certain length of time....with any host, and that they should either learn to code HTML, or find a better alternative to FP.

The fact is, clients who still ask for this, are severely behind in technology, and they can't expect outdated technology to continue to be supported by the masses.

Ironically enough, the simplest application ever written is notepad, which came out with Windows 3.1, and is still supported by 100% of hosts, with no EOL in sight.