Answer:
If the keys were silent in the review, it could have been one of two things. The first thing being, the microphone just wasn't picking up the audio as good and the second being, you could have just got scammed. Would you mind telling me the model of your keyboard so I can do some research. Cherry mx switches are loud because they bottom out on the keyboard. The actual switch itself is very quite. All linear means is that they keystroke is consistent and smooth rather than a Tactile switch which has a bum in the middle of its' stroke. In advertisement, they will lightly press they switch and that catches your attention when in reality whatever you are doing gaming or typing you will be slamming your keys down with a considerable amount of force. If you want a quiter keyboard I would pick a low profile keyboard which means that they keystroke is not as long as a mechanical keyboard which also means that the noise from the key hitting the keyboard will be a lot less loud.
Step-by-step explanation:
Hopefully that kinda answers your questions.