https://youtu.be/HopEHvZY-08?t=7m26s
Phillip DeFranco explained this all pretty well - and he is rather unbiased when covering news stories (or at least if he gives his opinion he makes sure to state that it is in fact just his opinion).
The emphasis here is around budget. Every government agency needs a budget - and they obviously want to maximize it every year... It's basically decides how much peanuts you get to pass around every year, so it makes sense to always fight for and appeal to whatever you can to get the highest budget for your given agency. Makes sense, right?
So in this case, they are making sure to take those words out of their budget proposals... The OBVIOUS fucking reason, you ask? Because they are targeting their audience. If you want a climate change denier or someone that is skeptical of science to give you your budget allocation, are you going to piss them off and call them stupid? No, of course not... because they can just give you a 20% budget cut just like that.
To me this makes perfect sense... Trump admin is full of morons, and they are appealing to the audience.
With that said, you guys are in fact getting halfway koo-koo and drinking the koolaid by going ape shit over stupid pointless news stories like this.