A common strategy is to first establish precedent by successfully suing smaller / less deep-pocketed entities, and then using that victory to compel more resourced organizations to comply. When SFC brought this lawsuit, Vizio was an independent company and much smaller than Amazon. Of course, its purchase by Walmart in 2024 changes that a bit—but before then, easier for SFC to face Vizio’s legal team than Amazon’s.
Vizio is owned by Wal-Mart though, so it's not exactly some small fish.
Very much this.
You never go for the big fish unless you have to. Even with an airtight case, they often can bleed you dry.