But being on 10 is demonstrably better for security than being on an old version with known exploits that is never going to be fixed. It doesn't matter if 10 is not in a good place, 7 is in a worse place. It's like you're saying - "I don't like that new bucket, the handle's uncomfortable, and some of the water spills out when I carry it, I'm going to stick with my old bucket", while the rest of us look on in awe as all the water flows out of the massive holes in the bottom of your old bucket.
As per my earlier link though - there are more concerning security issues than that, which are known to have been exploited, that have taken MS months or in the recent case 2 years to fix. It isn't really a hugely different situation until MS is achieving better on the Windows 10 front.