Whilst I don't entirely disagree, I would respectfully suggest that such statements should be researched so that you have proper empirical evidence to back that statement up. Personally I had high BP before diabetes and it is well controlled in fact slightly lower than the norm. As for cholesterol my last test before christmas was 4 and that's without statins.
As Bluetit1802 has intimated, we're all different, no on rule fits all. Managing diabetes is like keeping plates balanced on those sticks.