IMO the professionals themselves are free to do so, in the same way they can choose to skim rather than read, or to ask their 13-year-old nephew to read and sum

IMO the professionals themselves are free to do so, in the same way they can choose to skim rather than read, or to ask their 13-year-old nephew to read and summarize a document for them in exchange for a Minecraft gift card: In the end the professional is staking their reputation and applicable license(s) on those third parties. If they all work perfectly nobody ever needs to know -- and if they get it wrong because of that shortcut, the professional deserves to be nailed to the wall for it.