It can still happen sometimes, but it's very rare that it crashes and even more rare that it corrupts as well. The good news, the chances of it corrupting your data silently was basically zero, then and now.
However back then MySQL seemed like it went out of it's way to corrupt your data. The only "bonus" is, it did it all silently, so nobody ever noticed until they went looking. With MariaDB(the successor) it's pretty rare that it silently corrupts your data these days.