Actually, while frequent eating is beneficial in terms of maximizing the gene expression response to protein feeding, it is actually detrimental in terms of insulin sensitivity. At least one study has shown that people practicing an intermittent fasting pattern of food intake improved insulin sensitivity relative to people consuming a calorie matched diet consumed using traditional meal timing.

Monounsaturated fat is a much better choice as it is nearly as effective as saturated fat at promoting hormone biosynthesis. The problem with saturated fat is that it triggers expression of genes for fat storage, and the effect is particularly pronounced in visceral tissue (which is the least healthy place to store it!).

"If it fits your macros" is bullshit, because there is a definite difference between sugar and other carbs, and a definite difference between saturated fat and other fats. Try going on a diet where all your carbs come from sugar, and almost all your fat comes from saturated fat and see how you look and feel.