Re: If they cared about security at all
Rubbish. What WINE has achieved is impressive, but it's very variable, doesn't support everything, and is extremely dependent on using specific hardware (it's flaky as hell running e.g. older Intel graphics chipsets that would work fine under real Windows).
Windows compatibility with older games is pretty damn superb; there's a limited number of games that need a patch because modern graphics drivers don't implement old rarely used functions as well as they should, but I can't think of any games offhand that won't run at all.