Question regarding Zeal/More cast speed and most spells of 'increased cast speed'

Hi all,

A lot of spells that would otherwise fit well in the idea of dropping a quick spell or two between melee strikes going the Inquisitor Zeal path don't work at all with the 'more speed' part.

There's a lot of things I would have liked to try out, like double branding every few secs et cetera, but none of those work with Zeal at all.

I know it was changed this league from what I read, so I was wondering, anyone know if GGG has said it was meant to disable most spells that benefit from cast speed from benefiting from it? All brands, etc., they don't get activation speed bonus from that as it is more not increase.