I think you're sending this same message, but just to rephrase it - 24/7 coverage is important to the business due to the continuous traffic they receive, but 2

I think you're sending this same message, but just to rephrase it - 24/7 coverage is important to the business due to the continuous traffic they receive, but 24/7 coverage has to be provided by multiple people and/or teams; it shouldn't and can't be an individual responsibility.