I don't know this analyst, never heard of him, but regardless, although it might be good to have those sensors in the phone they don't make a lot of sense. If you keep the phone in your pocket, the temperature and humidity measures are going to be off. Much better to use any of the weather applications.
Atmospheric pressure might be independent of where you keep your phone but of dubious value. I don't know many people who care or know even what the typical range of atmospheric pressure is. All of this is easily accessible through any decent weather application like weather bug. Why spend a sensor for things that can be easily obtained through an app?
I am all for sensors, I think the addition of location capabilities through assisted GPS, GLONASS, and hopefully GALILEO in the future is great. All the accelerometers, gyroscopes, etc. great too! However, what this analyst is saying doesn't seem to make a lot of sense. If Apple decides to put these kind of sensors, that's ok, however I doubt how practical they are.