What's he gonna do? Nerf crafting and drop rates some more? That'll punish those that already benefitted from those exploits!
What are they considering exploits exactly? Pc hacking obviously. Wall glitching? Using broken game mechanics?
In the discord it is being said that on the stream they said that they are aware of the incursion cheesing and they don't like it and they are currently thinking about possible punishments. No other comment yet.
Could be an empty threat, sure, to try to scare people away from doing the cheese. Usually hard to punish people for using in game mechanics to their own advantage in PvE.