Should Apple find an alternative to the "butterfly" keyboard mechanism?

The release of the new #MacBook Pro would make it the biggest in the collection, especially after #Apple stopped selling the 17-inch models in 2012. Rumor also has it that the company could introduce an external 31.6-inch 6K external display. Well, #September is not too far away. Having said this, what's so controversial about the butterfly keyboard design after all?