"Scrum engages groups of people who collectively have all the skills and expertise to do the work and share or acquire such skills as needed" - What does that even mean?
This is just a door-opener for one of many equivocation fallacies which are destroying the entire "Agile" space. Let's dig into it.
We won't go as deeply into other equivocation fallacies - just teasing what they are, and the damage that they're doing.
Clearly optimized value streams are make-or-break for the success of any business. Everything is subject to an organization's core value streams. Processes need to optimize around them. When we can't discriminate the two any more and locally optimize a support process at the expense of our actual value stream, we endanger the whole company.