It's more of a forefront issue with C++. Also, there are tons of ways to write C++, there are very few (relatively speaking) for Java, C, Python, Ruby or Objective-C.

If someone tends to use a different style of dot notation in Obj-C, no biggy, at worse you get a leak or two that an automated tool can find 75% of the time

If someone uses a different type of pointer/reference on a serious chunk of the codebase or a different style of template based inheritance, you're up shit creek really fast.

The language itself has tons of choices all over. The issue is getting everyone on the same page without crushing creative, high spirited people or having to fire otherwise excellent engineers.

I'm not saying the language is useless, I'm saying it is a huge ass staffing pain to get the right mix of engineers who are brilliant and willing to slavishly do what they're told which is hard to find.