@hcs it's sort of a nasty nationalist article to be honest.
Consultants in general have these sorts of issues; outsourcing makes it worse, language/cultural barriers make it even worse.
If Boeing had chosen to have a site in India, moved their lead engineers there, and paid top flight/benefits- no outsourcing, no consultants, shared language- then the issues would largely not exist outside of the usual management pressure to cut costs and timelines.