So it's clear to me that accent and language skills are orthogonal. Many immigrants hit a wall with their accent because it's good enough, and they get more added value from improving their grammar and vocabulary.
That, in fact, is directly in line with pg's point.
His point was that you have to get to "good enough" and not doing so is a real problem. However he went on to make it clear that if your accent does not impede communication, then it is a non-issue.
Yeah I don't think I disagreed with pg, more that I think he's focusing on the much less important issue. I would hazard a guess that the number of brilliant entrepreneurs who have perfect English but can't be understood because of their accent is dwarfed by the number of brilliant entrepreneurs who struggle with English at a more basic level.
That, in fact, is directly in line with pg's point.
His point was that you have to get to "good enough" and not doing so is a real problem. However he went on to make it clear that if your accent does not impede communication, then it is a non-issue.