You obviously never studied business. They still have to pay overhead costs. The cost of renting the buildings they're in, paying taxes on the land if they own it, paying the salaries of the employees for this time off, etc. SE IS losing money, which is why they should be using this time to build servers in California and run this game from the US as a back up plan. Remember they are also losing any earned income for providing a free subscription in the month of April, and that's if this game is back up and running by then. Not to mention the countless number of people that will probably not return because they discovered something else to do.
They're losing money on FFXIV right now too. They also cannot produce ANY other games they make, no Research and Developement is taking place. They are losing money in more ways then one. FFXI and FFXIV were great sources of revenue for SE...
