for an outsider to clearly see the structural problems that an insider can not. This is usually only possible if the outsider obtained a lot of knowledge from

for an outsider to clearly see the structural problems that an insider can not. This is usually only possible if the outsider obtained a lot of knowledge from the insiders, which is exactly what's missing in the article. Also, while (sufficiently informed) outsiders may be able to spot problems, it is very improbable that they can spot "the biggest" problem, let alone reliably determining whether they did so. Claiming to be able to do that is boastful and nothing else.