I think the issue is not the bug count, but that Microsoft tells Google "we will release a fix on day X," and Google says "X is past an arbitrary day we chose, so sad" and discloses a zero-day. Some people think it's an irresponsible PR stunt by Google, others that Microsoft would just put off fixes forever if Google didn't do this.
Maybe there's a similar story with OS X, but there doesn't seem to be a public record of it.
Maybe there's a similar story with OS X, but there doesn't seem to be a public record of it.