New tooling could be meant to mean new molds which are very expensive to make. Though moving the holes out 4mm per each hole the design of the flange mating surface might not support it with the current mold or the current mold has the recesses machined in so the hole area is not in the right location which requires a mold change, or both!
I have talked with Emilio, owner of 949 a few times, great guy, I would trust what he has to say about this.
( I could probably write this a bit better but spent another 110 degree day working on the car and cleaning up the space I worked in as preparing to get back on the road.)