They definitely do, they can decide to opt-out, and retain the right to sue the company on that issue. But those who opt-out would have to go start their own lawsuit. For small matters where you were wronged by $120, and you only get $30 back, this is definitely not worth it to start your own lawsuit, the best action here is to take the money and boycott that company if possible. For bigger amounts, like lemon-law cars, it might be worth it, especially if the payouts look too small. For instance, $300 refund if you had to do multiple transmissions repair on your car doesn't seem that great, given that a transmission repair can cost from $500 to thousands of $ each. In that case it can make sense to opt-out.
> or "hey, 50% is too much for the lawyers, I'd rather take $0 than the shitty deal we were offered".
The article says they usually get $2 for $10, which can still look high I agree, but definitely not 50%.