The current settings will break Angular 2 templates as well as templates for many other MVC frameworks. Rather than try to require uses to pass custom ignore regex's it would be better to have a framework query:
html?framework=Angular2 or html?framework=Ember, etc that ensured the minification settings were safe by default for those frameworks. I'm happy to put together pull requests for Angular and Angular2.
http://perfectionkills.com/html-minifier-revisited/