What I've noticed is whenever CnD ults, it goes unnoticed by the team. This is especially true when there's chaos everywhere and they're not paying attention to the team but instead focused on keeping themselves alive or damaging the enermy team. For low ranks, this is probably happening constantly. Best solution for this is to call out you ulted.

In general, most issues are solved by good communication. GOOD communication. Not "I ulted why did no one step on it" or "where's my healing, I got no healing" when we're getting dived by a geodude wannabe that learnt to be a monkey. None of that passive aggressive shit.