Yeah, I figure that Ford removed the module from the distributor in later models because of the excessive heat transfer from the distributor/engine to the TFI module. The Ford OEM heatsinks that some of the later model modules are attached to are really pitiful cast aluminum heatsinks that don't appear to offer much in the way of cooling in comparison to a PC CPU's heatsink (PC CPU's can actually produce a LOT of heat, and often require much more elaborate cooling).Thermal paste has carbon in it to conduct heat.
Dielectric grease is voltage isolating and washout resistant.
Tfi on the distributor sucks. It's just a bad idea.
Relocation is only sensible solution.
Make sure to use RF insulated wiring harness if you do. TFI signal.is corrupted by static/stray/RF interference