Thats to protect the bottom of the slide, not your carpet or lino. If you take the piece off thats hanging there be sure to get it all off
so it dont catch on anything and do damage.
Your unit is a 2014, may want to upgrade that strip to a better product or wear strip, yours looks flimsy
Would also recommend a product called slide slickers. I also used pieces of Formica before I got the slickers.
Here's a thread referencing the use of the plastic strip and what they are to protect. Slide out /Underside wearing