Well, yep those bugs are unforeseen because no everyone or almost 80% won't use pin setup. I use Local Account and only enable Online account when I need to post something or windows store.
That's a pretty bold statement, and quite the number to pull out of thin air. I'm a power user and I completely understand some power users doing what you do, but I seriously doubt 80% of the average (IE not exactly tech savy) users out in the real world only use local accounts and go through the hassle of enabling online features only when they need them - which is usually always.
I know plenty of people that use Windows Hello with facial recognition to log into their machine. And that feature requires the setup of a PIN in conjunction with the facial recogniztion. The underlying idea of all the 'connected' features of a MS Account is that they should all work together.
On top of that, I'm only offering a possible option for other people to look at, as none of the posters on this thread seem to have even considered that the method of login could affect Windows Spotlight.
And a bug is a bug regardless of how many (or few) people may use that particular feature.
So thanks for your unhelpful reply.