Yes, there was data to decide that, you should ask them nicely on the proper channel if you want more info. Please avoid dismissing things as "bullshit", that's rude and it doesn't help the discussion. If you have any additional data to the contrary, then now would be the time to present it. AFAIK extensions are considered as a data point but are not the only one, any time there is a design change there tends to be an extension that reverts it so it's not much of a reliable thing.