None aside from those who created those mods could answer that question. Threshold tries to keep the game as "mod-friendly" as possible, but in the end, it's up to the mods' creators, not Threshold, to keep their work up-to-date and ensure it works on the most recent version of the game.
And even if he did that? From what I saw, he always mentions which parameters he may have changed on the modding side of things (referring to updates' change logs). Again, it's not his job to maintain the mods operational in every update, that task is solely up to those who created the mods.
To me it sounds like very simple and basic stuff. You create a mod for a game? It's up to you to maintain it, not the original developer.