Indeed, it's now widely considered to be correct. The same wasn't true just a few years ago. It's ironic that he uses a construction that would have signalled h

Indeed, it's now widely considered to be correct. The same wasn't true just a few years ago. It's ironic that he uses a construction that would have signalled him as unworthy of employment to his spiritual predecessors. Language change is a constant thing, using differences between your written English and that of a potential employee as a proxy for intelligence rather than group membership is foolish and exclusionary. It's only really relevant if the person needs to write in a specific register for their job.