If, however, this is prohibitively expensive then things change. E.g. A quick google search led to the hourly cost of an ASL interpreters being between $50-$145 per hour. Assume $100/hr, 5 hr days, 5 days/week, 4wks/month, for a 3 month program and the cost is $30,000 which significantly higher than bootcamp tuition. I don't think it is a trivial thing to force small companies to take customers that create losses in excess of 10K.
Of course, this also depends on how "small" the bootcamp is. If, e.g. it is a huge machine with thousands of students then this could be a reasonable expectation.
2) Yes you are correct. See my above edit.