I don't think it's unfair because it makes the engines are sealed, and the above comment is surely confusing power and quickness around a track.
I could easily have used the 124 as an example (I own one), but it's less known.
It also does 0 to 60 in over 6 seconds stock and is only at 164 HP stock.
If anything he Club number is suspiciously low
(The 2006 Miata, which non car people might not realize, is one of the heaviest, least Miata models ever made, also proving the point of how much weight matters)