What many of the comments seem to be missing is that you don't need to enable javascript on all google sites, only the sign-in page. With that in mind, I don't think there needs to be as much concern as we're seeing here.
This kind of apology for a problematic change misses how allowing small changes eventually normalizes the change[1], allowing another similarly "small" step to be taken in the future. Today it's "just the sign-in page"; tomorrow it will expand to cover something else because "it's already something you're used to using on the sign-in page".
It's rare for major changes to arrive all at once. Small steps are taken, with each eventually becoming the new normal that allows another small step to be taken[2]. This isn't always intentional - each small step can seem rational at the time, in isolation.
[any replies complaining about "slippery slopes" will be ignored; the normalization of deviance does not mean change necessarily will follow, just that normalizing incremental changes allows people to support changes without noticing the larger picture]
It's rare for major changes to arrive all at once. Small steps are taken, with each eventually becoming the new normal that allows another small step to be taken[2]. This isn't always intentional - each small step can seem rational at the time, in isolation.
[any replies complaining about "slippery slopes" will be ignored; the normalization of deviance does not mean change necessarily will follow, just that normalizing incremental changes allows people to support changes without noticing the larger picture]
[1] https://en.wikibooks.org/wiki/Professionalism/Diane_Vaughan_...
[2] https://en.wikipedia.org/wiki/Overton_window