magic is more than just bolts of energy. It's also healing wounds, creating illusions, etc.
Wait a minute. So you're arguing "Here's what the equivalent level PCs would be in real life in D&D, but I'm not using any of D&D's mechanics to base this on."??? If you're going to argue that a certain level of PC in D&D and what abilities they have using D&D's mechanics, it makes zero sense to not use the mechanics of the game in your comparisons. You can't have it both ways. You can't argue that a real life person would be level X in D&D based off of the mechanics of what a level X PC is, and at the same time ignore the mechanics that determine what a bear, rhino, or dinosaur have. Otherwise your argument is essentially, "I just pulled these levels out of my butt, even though the mechanics don't support it at all."
The only way you can do this is, "What sort of abilities can an exceptional person do in real life, and how does that translate into the D&D world." If that D&D PC can do much more than your exceptional person in real life (like being as tough as a dinosaur), then that means they aren't that high of a level. Pretty simple. If a level 3 PC can do everything a Navy Seal can do, and a level 8 PC can do WAY more than a SEAL can do, why would you say a level 8 is the proper comparison?
I think if you're gonna make the argument that level 1-4 PCs in 5e seem weaker than other editions, I can't really argue that. But if you're saying they aren't much better than the average person in the game world (or worse, in reality), then I gotta wonder about perspective. Even in 1e, where level 1 PCs were probably at their weakest, are still better than most everyone in real life by comparison.
All of this is in my opinion, but levels 1 and 2 are boooooooooooooooooooooorrrrrriiiiinnnnnng. Some classes start getting eh alright at 3 and 4. Classes really start coming into their own around level 6 and 7. I haven't played much beyond that in 5e because either the next season starts or something comes up to keep me from playing regularly. I'm not looking forward to suffering through the first couple of levels when the next season starts for AL. :/
I find level 1 quite exciting, but that's because it usually involves a tremendously hard "party meet" scenario that either kills you or levels you up to 2 while also explaining why you trust these other PCs with your life now.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.