Is it ok to reassemble the home button without the "spring contact"?

I followed the iFixIt guide to replace the screen on my iPhone SE (1st generation): iPhone SE スクリーンの交換

Step 23 of the guide mentions a "spring contact backing" part which is supposed to be screwed in between the home button cable and the screen.

I spent over an hour trying to screw it in between the home button cable and the screen, and every time I started turning the captive screw, it moved out of position. Looking at the comments on Step 23, I am not the only person who found it to be a frustrating and impossible task. I finally gave up and just screwed the home button cable to the screen without the spring contact backing.

The phone and home button seem to be working fine without the spring contact backing. But could there be any long term consequences without it? Surely Apple had a reason to put the spring contact backing in between the home button cable and the screen.