You aren't preventing anyone from going to page 2. This is just a way some Etsy sellers are helping to promote your shop. That's all. It's done in the spirit of good karma, or that helping one of us ultimately helps all of us.
What I'm trying to say is just what I learned from this. Someone posted my entire first page on a feed. That was lovely of that person to do. It brought me a lot of views and favorites I wouldn't have gotten otherwise. At the same time, I realized that not all of my best items were still on page one, but had fallen back to pages 3-4-5. I wanted to make sure I had my best things right out front. I'd let that slide a bit.
If that happened again (that someone did me such a favor), I wanted my shop to look its best. So all I was saying is that it helped me realize that I also needed to keep my shop looking fresh by bringing some things forward that had fallen back, and pushing some things back that had been front and center for a while.
You're right that there's nothing magical about this, but if someone features or favors you, and that person has a lot of shops in their circles, they DO help by exposing you to many more people than might otherwise see you.
It's a good thing when this happens.