In my opinion epilogue should not be needed to finish in any%. Any thoughts on it mods?

If the epilogue is the cutscene at the end than yeah the timer should end before that

Epilogue is a level you can play after the credits. And if i get it right timer should end when "race"(how games calls it) on level "Return home"(or something like that) ended?

Your right timer should end after Return Home, anything after the credits would be in 100%

ok then