NLRB: Why the Wilcox confirmation matters

Gwynne Wilcox was confirmed as an NLRB Member on September 6. Why does it matter?
1. The Board membership is once again 3 Democrats and 1 Republican.
2. The Board makes major changes only when there are 3 votes. Now that there are 3 Democrats, we expect more major changes to come.
3. It's surprising that the Senate confirmed Wilcox without her nomination being paired with a Republican.
4. President Biden has not seen fit to appoint another Republican to the vacant seat that is still there.