Yes, first adviser all over the place on dividends rules. Also the "£48k a year after tax from pension" figure is meaningless as it's not explained whether that allows for inflation, and nowhere in the article do we get information on current expenses, or expected expenses in the future, so £48k may be 2x what's needed or only 1/3 of what's needed. Adviser then goes on to mention some specific funds, probably these all have nice high charges...
Not sure I agree about "quite sensible", unless you mean "quite sensible" with emphasis on first word (for non-Brits: politely saying not very sensible at all actually), as buying a Porsche before you have any pensions savings isn't too clever. At least he's realized now.
Hopefully, the guy featured and readers will at least take away the overall conclusion that putting as much money as possible into a pension is a simple and the most tax efficient option for his retirement objective. He can then easily invest in whatever funds he likes (so property funds if he otherwise wanted a buy to let holding).
If the guy puts as much as he can into a pension then what's left will either be paid as income at 20% tax band or as dividends, so all the fluff about huge tax bills and 40% tax is irrelevant.