I have to admit that there's plenty of institutions everyday people are a part of, that during their involvement with, they cannot speak their mind too openly. Such as school, or your place of employment. Why should we expect any more with any religious institution?
There is more to it than not being able to speak openly such as at a place of employment where you fear some unfair employer would get rid of you if you were to be truly honest and say what you are thinking. You might expect this kind of unfair behavior from mere worldly men. The difference is that THEY (JW's) claim to be led by the one true God. They are mankinds direct connection to him....the only way to eternal salvation is by submitting to and following their direction. They taught us to expect more from them...to expect them to reflect the love of God, to expect a loving brotherhood, afterall these are the things that would identify them as the true religion. They claim to be the only truth and light in the world, yet time and time again their truths have been completly wrong,rearranged or deleted. Millions of publications with misinformation were spread by volunteers old and young all over the globe. People altered their lives and based everything around their claims only to be told decades later that what they learned and trusted, was wrong and an adjustment in attitude on their part would make it all better. If you disagree with your boss at work, speak your mind and get fired, your friends and family can still talk to you and you are free to find other employment. You don't feel damned by God....you are even free to seek legal aid in correcting an unfair situation. The JW's so thoroughly convince their members that there is nowhere else to go because all other avenues to God are based in Satanic worship that thousands and thousands of them are just playing along because they are so deep into it that they have no other choice.
As you say, there are plenty of institutions that people are involved with that are the same...yes, but most people leave them as soon as possible.