Not to dispute what you wrote above, but I take anything that comes from McAfee with a large grain of salt. They have long been known to tilt statistics in their direction in order to sell more of their AV software. ;D
Oh man, I was hoping you would...
But seriously...
It's not just McAfee, others like Symantec, Kaspersky, etc., do the same. And it isn't just Mac platform, they do the same for Windows and others as well. But even if one would take these report seriously, all it does is proving the ineffectiveness of the AV.
For example, the image in my posting shows ~460K malware for the Mac in Q4/16. For argument sake, let's just do some approximated calculation for 90 days:
New malware released:
Per day: 460,000/90=5,111
Per hour: 5111/24= 213
Per minute: 213/60= 3.5
Let's say that the AV has 99.9% detection rate, very unlikely but go with that. Even then the AV won't detect five new malware per day. And that's just for the Mac, Windows numbers are ~20 times greater...