Correct. However it may be at the expense of fat loss. Diet depends on your goals. Rule of thumb, try not to combine carbs with high-fat meals at the same time
There's no reason to split fat and carbs from a metabolic point of view, unless you find that combination irresistible and end up consuming more calories when doing so. The only argument for it is that it forces you to stop and think about what you’re eating.
As to cardarine and cancer risk... well... add that to the list. Feed rats Big Macs for a few months and you'd probably get the same result! That study was carried out nearly 30 years ago, and while that in itself doesn't mean very much, far more recent ones show numerous positive benefits, some even that suggest it can inhibit the growth of cancer cells. Another study has shown it can promote both faster healing properties and healthy liver function. Under normal responsible use (the rat study was abuse based on the massive dose they were given), there is no reliable research to suggest cardarine is harmful... no more than a million other things anyway.
Want to COMPLETELY avoid all cancer risk in your life? Go live off the land in the Alaskan wilderness and hope you haven't already lost the genetic lottery and end up with cancer anyway, irrespective of your lifestyle choices. Just make sure you apply broad spectrum factor 50 every day to avoid melanoma. Oh, and don't get eaten by a bear or drown yourself in the Yukon.