Most likely because we're not anywhere remotely close to this becoming a commonplace luxury, and the impact of this happening twice a year is essentially zero.

Starting with

> Hate to be that guy but

will give some readers immediate negative connotations (i.e. that you are in fact 'that guy'). Asking the question without the 'that guy' preamble might still be seen as an off-topic downer but may have raised fewer hackles amongst the downvoters.

Perhaps.

Also on an tangent, advances in launch industry = moving industries to space. This could reduce pollution drastically on Earth. So the net carbon footprint of the launch industry could even become negative.