The Lobbying Act says that when you leave politics, you can't lobby as a consultant or as a consultant lobbyist. You can't lobby for an organization. However, if you work for a company, you can have lobbying activities that represent up to 20% of your duties.
This should be eliminated, and this is one of my recommendations. It should be equal on both sides. You can decide to leave an exemption in place, which is a matter of policy, but I don't understand this 20% limit. I might have understood it more in the case of lobbying for charities.
Some of Mr. MacNaughton's communications were not on reportable matters, but some were. I think that these communications did not even add up to two hours. They represented nowhere near 20% of his duties, so they were allowed.