Now the company has to pay one of their lawyers ($$$) to show up, or the claim is a default judgement, which they have to pay.
So the lawyer shows up and says blah blah mandatory binding arbitration. The judge can interrupt and say "don't care, judgement against, pay the man". Or the opposite, in which case at least you cost them more than they cost you.
Which is why they probably take the default judgement and pay you.
Still takes time, and arbitration isn't all that scary, ao forcing them to arbitrate can also be a costly endeavor for them.
Bear in mind that motions and discovery are highly frowned upon in Small Claims courts that I've litigated in. And 95% of the time the court will rule in favor of the bigger party if they bring a lawyer, just out of general hatred of courts for unrepresented litigants.
Did you really? Monetarily you did of course. How much time does it cost you though? It might cost the company a couple hours.
So multiply that across even a few hundred times...