It was probably me. It's up to you if the size/weight difference is a problem or not, but size, volume, weight, etc. are all very objective mathematical calculations. The MP alone takes up over double the space/volume and weighs about double. The accessories, especially the batteries, are also a lot larger and heavier. At what point is the size/weight not a big deal? 3X? 4X? 10X? That is up to the individual. Anything double the size and double the weight is significant by just about any definition.
Find a bag that perfectly just fits a
MA, remote, and 3 batteries and you aren't getting an equivalent MP kit in it - not even close. Some people are OK carrying around that much more size/weight, others are not.
MA fits in a pocket, the MP does not.
MA fits in a water bottle holder on a backpack - the MP does not. For some people that is a huge deal, so it's nice to have options. Hikers, carry-on travelers, and backpackers are looking at every single gram that goes in their kit. Further to this, some countries laws make it impossible to fly a MP without major headaches and approvals due to it's weight, where the
MA is almost completely unregulated in the same country - the size difference is also significant enough for some regulating bodies to be concerned about.