Re: I am more than a little confused.
Correct. Especially if he needs specific treatment for a chronic disease, he should have got the proper information about obtaining it in another EU country before moving.
See for example http://europa.eu/youreurope/citizens/work/unemployment-and-benefits/country-coverage/index_en.htm
Moving to a new job in different country, with a probation period, without a backup plan, no saved money, it's quite a big risk IMHO.
Then, why the biggest database vendor, owner of one of the most expensive ERP software can't pay an employee who just worked part of the month is beyond my understanding...