Do you object to the hundreds of megabytes of your browser's code and dependant libraries too? Or since you brought up Python, why don't you object to the size of python's libraries and binaries?

7.9MB is nothing.

Try compiling it with gccgo that is able to dynamically link the go standard library (shared among your go projects) instead of building a single big binary, my guess is it should be just a few hundred kb :)