You have to realize that the whole magazine is put tpgether by 2 people, both of which have other full time jobs, family, etc, etc, which take priority over the magazine.
I agree that while something a little more consistent may be better for the brand, but they are doing their best with the spare time that they have over and above everything else in life.
If this was their one and only thing they did full time, then I would be more inclined to agree that a more consistent release schedule be adhered to, but such as that isn't the case here with the SMA Mag.