So, RPS linked to a video for the new LotRO expansion and it got me to poke around on the FAQ. When I read this...
8. I’m a Dwarf or a Hobbit. I’m tiny! What do I ride?
Your War-steed comes in pony size! Its build is still somewhat heftier than the in-game ponies so it’s also more capable in battle. (This one is modeled after the Fell Pony which is a scaled down version of the Friesian).
Awesome! Downside is that my old main is a Human Burglar (min/maxing got the better of me, also I sort of hate The Shire), so enthusiasm tempered slightly.