Most 2wd ST (Stadium trucks) I've seen are actually based off 2wd buggies or vice versa. Rustler/Bandit, XXX-T XXX-B? B4/T4, Evader EXB/EXT etc. At least these popular ones are. They are the same wheelbase, but a little wider than their buggy counterparts.

Truggies as Syco described are usually based off of a totally different platform. Usually 4wd car or buggy chassis and with of course bigger tires/width etc.

Doesn't need to be mentioned in too much detail as the rest of the article, but is worth while to mention at least the category, so as to differentiate and notify the reader that there is such a thing as Stadium truck (2wd OR 4wd) and Truggy (4wd only, usually center diffs, meant mostly for racing).

But I agree, no need for complex math on the Lipo part, but it should be clear to the reader that they shouldn't purchase an inferior battery just because it's 20C or more.

All in all it's OK to read to and refer to a new r/c enthusiast so they are somewhat informed of what is out there to pick from (or pick all!).