Lame. Yellow journalism at the very least.  I regret taking the bait and reading the article. 
They have failed to chart his career to prove their assumptions. Fact EY was in the public sector through the Auditor General way before 2015.  I knew several brilliant people employed by EY who succeeded rapidly through the organisation as a result of their brilliance.  To make such a weak assumption based on the man's surname is spurious to say the least.