Thanks for the feedback! I've posted this here: http://pkp.sfu.ca/bugzilla/show_bug.cgi?id=6619
-- please feel free to CC yourself to that report.
Regarding your follow-up qusetion -- that's actually still technically expected behaviour. Custom blocks are assigned to the conference website itself, and will appear in any/all scheduled conferences. Similarly, it's not that a block containing the conference information is *disappearing* when you go to the scheduled conference site -- it's that the context is changing, and the Navigation block (which includes/controls the Conference Information section) displays different information depending on the context -- and in the case of a static page, since the static page's URL doesn't include scheduled conference information, no scheduled conference information is displayed, although the rest of the block is.
Clear as mud, I know.
If you have any further questions, please let us know.