True, but you would be surprised at how many barrel stoves there are that handle 28" logs with ease--more than most splitters can manage without turning the log sideways. My large Federal Airtight 288 can swallow a 25" log, but I generally cut the logs 20" or less so LOML can handle them easier.
One thing I found out about log weights. The berry woods (e.g., hackberry and mulberry) tend to absorb more moisture and if cut green in the late spring or summer, they often weigh the truck down even more than oak or hickory. When dry, the berry woods are surprisingly light.
However, I think the heaviest load I ever pulled from a worksite was a full load of green locust. I told my Ranger after that one, "Never again, sweetheart. I love you too much." LOML was riding with me and she thought I was talking to her."