i'm not sure what that would really do. it'd just roll the ball forward, setting things up to re-occur again. if you invest in an alt cryptocurrency, and it grows into the mainstream again, the same shit would happen. humans would corrupt it.
It's incremental improvement, and as people's comfort level with instantly dropping one currency for another grows, the quality of the viable products grows, just as with any other product. After all, the unique selling proposition of cryptocurrency is freedom from state control. No reason why we shouldn't approach that ideal asymptotically.