I'm to lazy to dig them up, but yes, if you look at the python change they applied to break win7, or the firefox change required to break winXP they both were like 20 lines of code that largely had sat untouched for years and provided some api shimming.

So it actually takes effort to remove support for these OSs, and generally its better to just let them decay if the project can't be bothered to keep a CI machine running than give your users the middle finger.

So, yah, they deserve the ire people direct at them.