I've literally worked modding with the Unreal engine since I was 21 and mapping in Uni, and have used all of this tech before as it's matured. Other exploits are speculative, and can be fixed on a case by case basis (as they have already done, they HAD to fix the backdoor to the Control tower locked room as a consequence of this fix, breaking their original design which was that it was a map variant that allowed you to get in if you knew about the roof ladder)
It's extremely simple to not rely on the physics of a mover on the door and instead just draw a new collision only volume overlaying the door which stretches into the walls, and have the collision properly set to false once the keycard button is pressed, that's exactly how I would have done it. I have maps that are played over 2 decades later for Unreal Tournament that literally use this kind of behavior.
I guessed this would be a problem less than like 10 hours before evidence started rolling in that it had caused more problems. That was some fluke guess, that was an obvious side effect of trying to be clever. I'd also further guess this is not the only problem with it. I think legit keycard users are going to get flamed under certain circumstances that are more complex and harder to predict at some point in the future.
If I was a lead manager at Embark and a coder/designer brought to me this suggested fix, I would have said no instantly, and I would have been right to.
I'm pretty sure there's a screenshot somewhere of dev response from discord saying they were working on a room temporary fix before rolling out a fix for the door. So my guess is the fire is going away in future.