I disabled that. Most annoying thing ever.See that shiny little thing that says "secondary click"? Enable it, and the bottom right of your "one massive button" will be right click. When you connect a 2 button mouse, this will be enabled by default. Macs have right click. But you have to enable it on the touchpad.
Just because you don't use it doesn't mean others don't. I have a two button mouse and I have the additional secondary click function turned on so the bottom right side of my trackpad is a right click. This means the description right click describes what I do.I disabled that. Most annoying thing ever.
I do love the trackpad gestures and do use them a lot myself. When I'm at a desk with my MBP I have my mouse connected but I go back and forth between using my mouse and trackpad. The mouse is better for fine precision movements, wide fast sweeping motion going back and forth across the screen, and for games. Everything else I can pretty much use my trackpad for and I like to because of the gestures.Since owning my MBP (about 4 months now) I have used a mouse about twice. The trackpad is genius! Whenever I use a PC laptop I get frustrated about the lack of swiping.
Good luck shifting the paradigm! But, you are correct. The left/right descriptions should be replaced with primary/secondary. Somehow, I don't think that's gonna happen.... for left handed uses, the right click is the primary click and then the term left click would serve a different meaning.