So, according to the story, CR made two mistakes:
1)They used the default browser supplied by Apple
and
2) They found a bug in Apple’s software.
Apple’s apologist goes a bit over the top with this defense.
You misquoted the actual facts, deliberately, I think.
CR also deliberately TURNED OFF SEVERAL SPECIFIC OPERATING SYSTEM FUNCTIONS which then crippled the OS's ability to function correctly because they DO NOT UNDERSTAND HOW UNIX and Apple's macOS SYSTEMS WORK! For the simple reason THEY DO NOT WORK THE SAME AS WINDOWS PCs.
CR made an ignorant, erroneous assumption that bit them in the ass.
I gave up on CR when they gave Obama and interview and supported obamacare