Unions, Smunions--What, Me Worry?

For all the celestial disturbance over the proposed Employee Free Choice Act (EFCA), you wouldn't know it from a poll I just discovered at the Manpower Employment Blawg.

The blog posted this question:

What is the #1 most frightening employment law issue you’re facing right now?

And got these results:

1. Terminations (26%)
2. Discrimination (13%)
3. Medical issues (10%)
4. Harassment (9%)
5. (Tie) Wage and hour (8%) and Benefits (8%)
7. Hiring (7%)
8. RIFs (6%)
9. Unions (3%)

So, unions are at the bottom of the list, are they? That being the case (in a very unscientific survey), why all the hubbub over EFCA?