You're only missing the Time Factor.
The Buzz came out before the Hornet and it was their lightest oil ball, up to that date, and, therefore, had the most length and a "significant" backend. The Hornet came later and gets more length on lighter oil than the Buzz. They just did not update the Advertisement and marketing materials for the Buzz. And, well, it's the lightest oil ball, and with the most length that maybe 90% of people will ever need. The dry-ish conditions/light oil for which the Hornet is made is mostly for tournaments and those of us on the East Coast where they use less oil than most parts of the country.
The Hornet can have a large backend, given the right oil pattern and the right drill, but, for the most part, it is more even reacting than the Buzz, in general. (NOT for all people, all the time, but in general. Heck, last week, it shocked me with its huge hook and I don;t normally throw a large hook.)
That's my interpretation.
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"None are so blind as those who will not see."