Title says all. The Corail Tombstone mod was utterly removed from Curse without a word.

In FE was never a change made specifically for Corail's mod support. The change made only provides better compatibility with modded deathchest mods in general. No need to revert the change.

In regards to the change, it was indeed made as part of a bargain with Corail to get him to unban FE from his crash to desktop ban list. (He did not want to unban even though FE's grave module could be disabled). However, that change also increases compatibility with other grave mods so it shall stay in the code base.