This is incredibly annoying. I don't believe any laws to require cell phone camera shutter sounds have actually passed (and I'm opposed to the idea anyway).
One of the main features that sold me on the EVO LTE was the camera's burst mode. I frequently have to take pictures of people talking at events for my job, and the EVO LTE's burst mode has made it MUCH easier to get a good looking shot in those circumstances. (These do not need to be professional pictures, so the EVO LTE's picture quality is perfectly adequate.)
As luck would have it, I updated my phone this afternoon and I had to take pictures at a board meeting I was staffing tonight. There I am, as about 15 people are sitting around discussing important topics, and I start to take some pictures just as I've done many times in the past.... only, this time.... click-click-click-click-click-click-click-click. It was a terrible interruption and I let go of the camera button as soon as I processed what was happening. I slipped out of the room to look at the new camera settings, expecting that the shutter sound might have been given its own setting, but imagine my horror when I realized there was absolutely nothing I could do to silence it. Even if I wanted to take regular pictures, the board members would hear the distracting and unnecessary clicking sound over and over again. I hypothesized that the shutter sound would be turned off during video recording and I was right, so I ended up video recording the meeting and taking lower quality images in the process - and being unable to use burst mode, one of the primary reasons I purchased this phone. Even then, turning recording on and off also makes a noise, but it was much less frequent and the best solution I could find at the time.
I doubt they'll be changing it back, but this change is not just a mild annoyance for me. It actually makes it harder for me to accomplish my professional responsibilities!