That's like saying you have to reimplement assembly arithmetic, you can just use the Calculator app to do so.

Bad websites are the results of bad developers, not the tool. You can have your history messed up by any kind of website.

Or simply unaware about the whole "back button" debacle. Which is yet another stone to throw at the SPA camp: if using technology A requires a programmer to learn about more stuff (and do more work) than technology B for achieving pretty much the same end results, then technology A is inferior to B (for achieving those particular end results, of course).