I personally didn't check the numbers, but even if the percentage is "only" 0.25% it gives a strong message to the rest of 99.75% that they should take care and especially that they should not make any fuss at their current job, otherwise they might risk losing almost everything they have built in the US. Not that the great majority of those 99.75% don't already know it.

Related to this, it is high time for this indentured servitude-like legislation to be scrapped for good, but as long as the people affected earn relatively good money I guess we won't see a real move against it anytime soon.