I feel like you are reading way too much into this. You can look up thread and see both a SpiderMonkey and V8 dev/xdev agree SunSpider is basically worthless to

I feel like you are reading way too much into this. You can look up thread and see both a SpiderMonkey and V8 dev/xdev agree SunSpider is basically worthless to almost harmful to benchmark against and that V8 continues to absolutely dominate SpiderMonkey overall.