2014 might get a few JW minds thinking about things and may cause a few doubts for some. The real damage will begin in the years following 2014. 2015, 2016, 2017, 2018. 1914 is becoming more and more irrelevant with each passing year and decade.
Can you imagine feeling any excitement or enthusiasm for the Heavenly Kingdom established in 1914 in the year 2020? Wait till 2023 (or pick any year in the not to distant future). We will soon be a quarter of a way through the 21st century, and 1914 is going to be egg all over this religions face. A huge stinky elephant in the Governing Body Boardroom.