Generalizations are not wrong, so long as you understand them as generalizations. It only becomes a problem when you incorrectly take a generalization and treat it as an absolute truth. "It's warmer in the summer than in the winter" is a generalization. You just have to understand that sometimes there are days in mid March (technically still winter) that are warmer than some days in mid September (still summer). And also of course, it doesn't apply to the southern hemisphere. But there's nothing wrong with observing or voicing generalizations, so long as they are presented as such. Words like "average" suggest that it's presented as a generalization.
Batteries are not animals. They are a chemical, physical object. You cannot "work them hard" any more than filling up a glass and emptying it out again is working the glass hard. The idea of "working them too hard" stems mostly from Lead Acid batteries where you had to worry about sulfation, and using short, partial charge/discharge cycles was the best way to avoid that. That's not true of LFP batteries. As long as I'm staying within specs of recommended usage, there's no reason not to use the full capacity of my batteries. I don't run them down to zero. I don't keep them at high voltages. They spent the majority of their time in that long, flat plateau of the discharge curve. I protect them from extreme temperature. I don't exceed even half of their C rating (well, sometimes, just barely over half).
Honestly, I would love to have more battery capacity. Two years ago, when I designed this system, I doubled my capacity from my previous system, and then I found that I had use for the additional capacity. And if I doubled my capacity again, I would use that capacity. I would use it for welding or additional cooling in the summer or whatever else I wanted to use it for, because electricity is useful. If you're buying battery capacity that you're not using, you're just wasting money.