I haven't changed my mind.
As a scientific decision it made sense to derive a firm definition of a planet - which is what they did. If science was not willing to change to adapt and grow we would never get anywhere
Ric - Mercury is still a planet, and pluto isn't, because the 3rd requirement of the definition is only met by one of these two bodies
is in
orbit around the
Sun,
has sufficient mass so that it assumes a
hydrostatic equilibrium (nearly round) shape, and
has "
cleared the neighbourhood" around its orbit.