I'm a cynic as far as a lot of Audiophile upgrades go.
However, the base that various units are sitting on can really make a difference.
25 years ago, I had my first "proper" hifi, It was entry level separates stuff, Technics and Marantz.
It was on the shelves of a cheap Ikea TV stand, underneath my TV.
I was doing some decorating and had took it off the TV stand and placed it on the hardwood floor. Speakers were in the same place.
There was a very noticeable sound improvement.
I bought a decent audio stand after that.
Not sure if those little feet could make much difference mind?