The big weakness of Angular is server side rendering,which involves heavy solutions like phantomjs,while you can render react components on the server.
Angular is not very good at rendering/managing svg either,that's a fact.
I would argue maintaining pure html templates is not that hard.
But frankly Angular solves so many problems these are minor issues.Writing complex lob applications is so easy with Angular I wouldnt want to use anything else.
The only case i'd switch back to backbone+react/vue/ractive and jquery is when i'm writing interactive experiences that are not CRUD apps.
So no,dont switch to React for the sake of switching especially since AngularJS just works. I mean people dont even bother learning javascript,they learn AngularJS ...