I normally don't respond to posts or spend a bunch of time on forums. I found this interesting with lots of differing opinions and some good points. My thoughts on radio and its use are shaped by a carrier in public safety, emergency management, and my personal use of Marine VHF, GMRS and HAM, within licensure guidelines.
The FCC states "95.1703 Definitions, GMRS. General Mobile Radio Service (GMRS). A mobile two-way voice communication service, with limited data applications, for facilitating activities of individual licensees and their family members, including, but not limited to, voluntary provision of assistance to the public during emergencies and natural disasters."
As mentioned, I have both GMRS and HAM licenses. I also own a local GMRS repeater that has a large footprint, and am involved in HAM repeater systems that are part of the SKYWARN network. No, GMRS was never meant to be HAM. But all things evolve over time, it will not become HAM (nothing will become HAM, it is literally an experimental license that allows HAMs to do many, many things), but its use has and will evolve (grandfathered licenses for example) just like CB radio did.
In my opinion, GMRS has some distinct advantages over HAM. The biggest being that once license covers a family. Repeater linking is not allowed in GMRS, so that keeps comms more local. A big benefit to GMRS and GMRS repeaters in particular, is the ability to provide alternate and emergency comms for families and friends. Most of the people who want access to my repeater specify they want it for emergency use to communicate with family and friends.
Something a lot of people don't realize about cell phone service. Cell providers, and really all of telecom, are not required to provide long term emergency power for their sites or nodes. Most only have battery backup that doesn't last very long. My area gets hit with some severe weather once a year that causes widespread outages due to power and telecom lines being down. The first thing that happens is the cell towers get loaded up and bandwidth drops. If you have a cell provider that is not a big company that owns its own network, you are the first to get dropped from the network / site. Most people also don't realize that most "landline" phones are now VIOP. When the node goes down because its batteries are dead, so is you phone and internet (assuming you have power). As soon as the cell site without a generator looses it battery backup, its off the air and your cell is out. This can last for days. In contrast, the "big" repeater sites, both HAM and GMRS, are on UPS and gen power. My GMRS repeater can run a minimum of 24 hours with moderate use before I need to plug it into the generator. All the HAM sites I'm familiar with are the same way and are usually on commercial towers with gen backup.
In order to use radio for emergency comms, you need to be familiar with radio and be fluent in its use. You need to know your radios work, you need to know the repeaters you programmed a year ago are on the air, and you need to know where you can use them from and who you can communicate with on them. You also need to have a plan for using radio to communicate when cells and landlines are down. Radio checks, general conversation, and rag chewing on repeaters helps ensure this.