It's the most precise word and also is readily understood by his target audience of writers. A correct term of art can replace swathes of text. Compare using the abbreviation DAG as opposed to trying to explain the same concept without appealing to shared knowledge.
I’d say “Byron-esque” has the same meaning while being more readily understood.
Sounds like he's a fan of the Count of Monte Cristo.
Count of Monte Cristo is perhaps one of the best revenge stories ever written. Though I'd say Titus Andronicus is up there pretty high as well.
I haven't read it, though I've read some Byron (and Polidori's ripoff).
It's absolutely marvelous. It also inspired some fun derivative works like Alfred Bester's The Stars My Destination (Tyger Tyger in the UK).