In April 2015, Apple introduced its new Retina Display MacBook with a new “butterfly” keyboard design. Some critics didn’t like its shorter key travel, but complaints really began to snowball as its mechanism was adopted across Apple’s other notebook models. Today it’s regarded by some as a major problem, but journalists describing the problem don’t seem to really know what that problem actually is, and are misleading users with their reports based on fact-free claims.
Source:: Apple Insider