Earlier quoted context omitted.
Why should we trust Apple for security in that context? Apple also provides all those functionalities via their proprietary API, which is not even audit-able. If Apple really believes in that argument, they should disable their own API as well.
Well, while the argument is entirely bogus as "PWAs are unsafe" implies that loading web pages in that browser itself is unsafe and thus stopping PWAs but not loading pages is pointless, you do have to have full trust in Apple for security of your device as they are the sole provider for the core platform providing most of the security primitives used. That just doesn't exclude trusting others as well.
Since when was loading web pages ever considered safe, at least by those who actually breathe computer?
It's frankly alarming how much trust we (must) give to Arbitrary, Remotely Executed Code(tm), especially given how many attack vectors are remote code executions.