Actually, I find it to be quite appropriate.
We, being tech geeks et al., deal with technology all the time - and we are more aware than anyone else that there's a LOT that can go wrong with technology. Things break all the time. When it comes to software, usually it's an easy fix - often times an error will go unnoticed because the software can recover from the problem and go on its way.
Modern planes run on software. Tons of sensors, code that has been extremely well tested, etc. But even then, getting on a plane makes me a little nervous because, well. I work in software. People are dumb, and machines will always do what you tell them to do. There's also two guys in the cockpit that, at any time, can tell the software to go die and they take manual control of the aircraft.
The grip detection system, or anything electronic, is not something I would want on my firearms. The software could be bad, the sensors could break, or the battery could fail. Not interested.
Guns that will only fire if in close proximity to the owner (via RFID rings / bracelets) have been around FOREVER (well, at least 5-6 years), and nobody uses them. There's a good reason why. The chance of failure is to great, and if someone needs to use their firearm, they may really need to use it.
The problem with the loaded indicator, of course, is this: People are trained that guns are always loaded. Always. Even if the thing is taken apart, you treat it like it is loaded. You don't point it at anyone, ever. So I don't know how much value a loaded indicator would really add.
Plus, add a loaded indicator and you will have people saying, "Well gosh, the loaded indicator is off, so it definitely is not loaded." Then the gun goes off, someone gets blapped. Faulty indicator. Lawsuits ensue anyway. Plus, people have to actually look at the darn thing, and... I really just don't think it would do much to prevent accidental shootings.
I wouldn't mind the clip safety, though. It seems like it would be easy to implement. Of the guns that use clips, I only want them to fire if the clip is in. An additional safety measure like that, something that will actually help, sounds good to me.