Everybody loves Pluto. It should have been grandfathered in, simple as that. Who cares if it's strictly accurate, science makes plenty of stupid exceptions with a wink and a nod. Why not Pluto?
I honestly wouldn't have had a problem with it being grandfathered in. I love Pluto too. I'm just saying that from a strictly scientific standpoint they got it right.
Also for all the credit Neil deGrasse Tyson gets for Pluto's demotion he's more of a supporter of the idea than the root cause. He's among the most famous astrophysicists so his views on the issue are among the most well-heard but he's really only driving the getaway car. If you want a better culprit go with Mike Brown of the IAU, who wrote a 2010 memoir called "How I Killed Pluto and Why It Had It Coming." He's the one who is actually taking credit for it. Tyson is only justifying it.
