Hide Elements plugin not hiding elements in search form?

I have installed the Hide Elements plugin and selected the metadata elements that I don't need in all three columns (form, admin and public) .

The plugin filtered out unwanted metadata elements in the admin area, which is really great.

But my advanced search form still contains the big lump of metadata elements:


First of all, am I right in assuming that the "form" column is supposed to let us select the elements to be filtered out of the search form? And second of all, does anybody know why this would not work?

All best,

It looks like plugin doesn't affect the search form. The 'form' column looks like it hides the element when adding or editing a record.