Of course, owning an emulator or using one is not illegal, but the main issue about emulators is this – the ROMs that you tend to play with on the SNES emulator would be SNES games of old that have been ported over to be compatible with the emulator, and this happens to place them in an extremely gray legal area, and obviously to promote their use is not something an organization or company would do if you had a business arrangement with Nintendo – the manufacturer behind the SNES. We wonder how this promotional faux pas will play out in the end, but hopefully everything will be resolved amicably eventually.