Well, they're "idiot-proofing" the process--I just still have this sneaking suspicion, paradoxical as it may sound, that Peter Milczyn's one of the "idiots" they're "proofing" it from. Had the whole NPS 40th-anniversary-renewal notion been spearheaded by, say, Kyle Rae, walkway-removal wouldn't be so conspicuous an option, I'll bet.
As the only councillor who lists his profession as "architect", as well as a member of the Toronto Preservation Board, Milczyn--a right-leaning Liberal--is an enigma. And in a way, I wonder his stance reflects any on the fact that the most conspicuous arts/culture/heritage element in his constituency is the Kingsway. Angliae pars Anglia procul to the point that wears its Betjeman on its sleeve, a constituency that is high-Thatcherite absolute in its conviction that the Modern Movement is, like the welfare state, a discredited failure--and the proof's in the pudding; on a level stylistic/affordability plane, which would most people choose: Don Mills, or Kingsway Park? Duh.
So, if you're serving/ensconsed within that milieu (or the pan-Etobicoke milieu, for that matter), naturally it's gotta rub off somehow. Thus Milczyn serves as a kind of silent conservative-wing emissary within the TPB; and removing the walkways "advances the cause", even as it causes other TPB members as well as preservation staff and other high-placed experts to cringe.
It's sort of a stiff-upper-lip "Etobicoke thing". It's why the embarrassing debacle of the Old Mill Inn was able to plow through with the support of the local heritage establishment; y'know, others may complain, but Etobicoke Knows Best, etc...