I thought earlier hoogle would list Prelude later (ie not as the first module hit) - or maybe something else is going on?
I haven't checked around carefully but I noticed several results listing Prelude as the first matching module.

So I am not sure if this is a regression or intended change of behaviour or simplification?

Not the end of the world for sure - but since the Prelude module is quite long preferring other modules would be better like earlier.

I should look at the code I suppose...