Oh well, it's not as tiresome as the change that can make it so awkward to search for deaths of married women using both surnames.
For some combinations of surnames, you often get "Your search for 'other surname' returns too many results, please narrow your search criteria to return less than 1,000 results" even when there are fewer than 1,000 results for the first surname on its own.
Just be grateful that, unlike the Northern Ireland web site, you are not restricted to searching only 5 years at a time, and that there is the option of wild cards or phonetic matching, which are not an option on the New Zealand and New South Wales ones, and, again unlike those last two, that you can search most of SP without a surname.