Whopity
As BillieBob explained, that does not limit instruction to a club environment. The CPL is already entitled to fly as pilot in command of an aerial work flight in a class or type included in his CPL. There is no limitation to clubs. The paragraphs that you quote permit him to fly as pilot in command of an aerial work flight in a class or type included in his instructor rating (but not, by implication, his CPL) in equivalent circumstances to a PPL.