Yeah, couldn't disagree more.  In your zeal to make a point, your post - unlike that of Mr. Box - throws basic tenets of science, process and rigorous critical and logical analysis to the wind. Your choice of perfection as the starting point, standard to which science must adhere and end point is, ironically, the flaw in your argument.  Who says perfection exists in any form but thought? So it exists, but as an idea only.  That's an argument only for fake facts, AKA "alternative facts" AKA fake news only. 
Having said that, it is true that subjectivity is a necessary part of all things that involve human input.  We are subjective beings, with all information necessarily filtered through our 5 limited senses, to say nothing of our cultural, emotional, psychological and intellectual filters. That's why rigorous scientific process and discussion must occur and abide without perfection as the only answer.