I think it came across pretty clearly – as there are no currently sold (affordable) FF controls, there is no money to be made by adding FF code for legacy controllers, so its a low priority –
Its all about PROFIT, and adding FF code is not “Profitable” to MS.
If MS were still selling a current MS FF Joystick, the code would be there, pushing the sales of that Microsoft Joystick.
At the end of the day, does it really matter if ASOBO does not add true FF code … for the limited “current” market of those few that still have a legacy FF joystick, Add-on developers like XPforce, are covering those needs, , probably far better, and certainly with better Customer Support, than Asobo can ever offer through Zendesk
BTW: I still have 2 MS Sidewinder 2 FF Joystick from my FSX days, and they work “acceptably” well with XPforce … certainly well enough that I am very reluctant to swap them out, even with any of the “Latest & Greatest” high end consumer Yokes.