My opinion in a nutshell: ask the top players what they think
Economy is important in counter-strike. There's a reason why pro teams aren't questioning why the AWP is in the game, because it's a high risk investment.
The "shut up and counter it" is a valid argument, but it's kind of a shame that 9 times out of 10 it's being used by people that have thousands of hours invested in the game and still have much to learn. The higher-end of gold players obviously don't have a problem countering it, but there's a reason why that and the hvr are laughed about when someone's trying to get serious about the game.