Business visa was requested by the company because I will work here. They intend to hire me permanently so to play safe, they let me (us) for medical to make sure that we will not fail the medical here if ever.

It only means that I (and the others) are documented OFW as we pass the procedures for such. So even if we hold Business Visa (to get there QUICKLY), it will be legitimate for us to work here (and there is a work waiting, not looking or scouting). We have our protection as OFW.