Personally I like to mount two plate blocks to a page using Hawid 130/85d custom mounts or the like,but with the ready made pages that are set up for three block number spaces there's usually not much you can do to the page but to fill the holes,one day I'll customise an album but with my limited technical ability I'll have to make do with what I have.
I've also brought albums that have several plate blocks scattered on a blank page,pages that only have a border and are blank underneath the block

these look very untidy at first glance and this is why I agree,two to a page with out overlapping does look neater.
regards
