it's a precaution - like one extra colon check. you might argue you don't need it... but to disparage people who want to get a second opinion, is just silly.
Nobody KNOWS the truth. Both sides have points. But further investigation can hurt no one, and only help our world. Once something happens, and suddenly 30% of antarctica shifts one day, all hell is gonna break loose. The big chunk of floating ice might take a year to raise sea levels 10 feet.. .but picture the madness that ensues, real estate market wreck, economy problems... NYC and Beijing being underwater... I don't think people understand what that kinda raise in sea leve would mean.
To mock people who want to study it more is akin to the wafer buffalo teasing the PETA folks.