It's a valid question - it probably doesn't. At the time, I was thinking about making it bullet-proof by rebuilding it, but honestly? I just turned 20,000 miles on the bike yesterday--there's not a Honda engine in the world that can't go 20,000 miles. That's like the break-in period.
I do see some oil leaking from the camshaft grommets, but that's probably just due to age. I think there are bigger fish to fry with the bike.
I wouldn't put time and money into rebuilding an engine with only 20,000 miles on it. Just keep riding it and enjoy. I was actually referring to Lando as his bike is a 2003.