Which isn't an indication of a faulty part per se, but perhaps more of a systematic issue, and as a 13/13 club, they are very sensitive to such issues. Also, as a marque club, they have more luxuries in their rules writing than other clubs.
[/b]
Jake, you are correct. The control arms are a high maintenance item. Porsche found this out rather quickly when they started to race the 944 NA/ 944 Turbo's. Don't forget they came with about 247 hp in the 944 turbo s while the 944 turbo Escort/ World Challange cars started with 250 hp in there light weight configuration. When I raced mine, I think I was around 340 hp @ rwhp and with 17" wheels. As you can see, there would have been an enormous amount of additional stress placed on the suspension points.

So all you 944 drivers be careful, to break a control arm @ a high speed turn would probably not turn out good.