People wanted a Doom game not a Silent Hill that had a bit more action. The Flashlight was something pretty much everyone when the game was released, are you telling me that the UAC went to mars, they could teleport people, but they can't put a flashlight to a combat armor or they can't put a flashlight to a shotgun.....
Doom 3 BFG got so much hate because people went into snob mode, because the flashlight was not mounted to the armor... All the sudden so much people loved that they had to switch to flashlight, because "it was a core part of the game".... or even worst "ohhh my god they did destroy DOOM and DOOM II no red crosses!!".
Quake gameplay is more fitting to those add-ons, Doom 3 not so much. Doom 3 is mostly a single player history driven game and they know it.
I rather see a Quake 2 remaster with all those add-on rather than a Doom 3.
What i would love that ID would do with Doom 3:
A release with 4k textures, bug fixed, the add-ons and something that will make everyone happy..... "OG mode" "BFG mode"
You want the old armor and the flashlight?? Here go and have fun.