Ill turn a bad into a good, how many of you drive hard enough to bust a lateral link under spirited driving

Here is a good image of the MRT part I speak of

I would expect to get a free replacement. Is that too much tot ask? I purchased the items maybe 8 months ago at most. Other than a couple Auto/Rally cross events this car sees about 75 miles a day or about 2k miles a month.
Last weekend I was up driving spirited and on one hard turn (yeah Im even able to overstear with the correct speed and braking) I heard a BANG. I checked over and over and couldnt find it.
Starting this morning the car would randomly vibrate coming to a stop. It was a very severe vibration, made me think the car was falling apart! It got worse until I could drive more than 10mph without it happening.
I crawled under the car and basically touched every moving part. FINALLY found it.
What I think happened is that the spot where the "pipe" is welded to the bushing snapped, but only on one side. After driving it a few days the other thread of metal finally gave loose.
Im so bummed. I know my labor is lost but I hope I can get a replacement quick.
Heres a linke to the part http://www.mrtrally.com.au/performance/controlarms.htm
Do you guys think I just got a manufacturing defect? I cant imagine if this is a part meant for rally and my normal street driving broke it!