By your opinion 90%+ of Java ecosystem is ignorant of proper error handling, which in itself is a statement on how poorly this method of error handling is looked at.
I have seen quite a bit of code in the Java ecosystem over more than 15 years, but far less than 90% of it. And even in the small slice that I've seen, I'd say the quota of ignorant error handling is way lower than 90%. Especially the higher-quality Java libraries that people reuse over and over usually behave okay with regard to exception handling nowadays.
