They couldn't have made that design much more pig-awkward if they'd tried, most car makers manage with just a couple
or sometimes 4 clips and no need for any tools perfectly OK.
Even the backward ones still using a few screws usually manage it so that you don't have to remove any hoses - and as
for having a filter with two holes in it....
Maybe that was the point though, discourage DIY fiddling and ensure pattern filters are more complicated/expensive to
make?