Sticking with the same example, let's imagine someone searches for "tattoo removal Austin". A general search like this is common, especially for the majority of people who don't know the name of the business quite yet.
As you can see in this example, Laser Focus Tattoo Removal is in a competitive market. All of the results that show up have several Google Reviews and a great overall review rating.
If you don't have enough Google reviews, or if your Google reviews are poor, you will likely lose new business to any of your competition that has great Google reviews. Even worse, if you don't have enough Google reviews, Google may leave you off this list all together.