Obvious answer: Last minute litigation brought against the Vogons by a trans-galactic dolphin consortium set back the original plans for a hyperspace bypass.
Of course, as these things go, money talks in the end and there you have it, the end of the world 2.0!
Proper Funny. Doug would be proud of you
For the real conspiracy theorists, I think the space-time continuum (and therefore the waves and weather) were damaged when Arthur Dent traveled back to Elizabethan England where, dressed as Sir Walter Raleigh, he challenged Mr Bean to sail around Cape Horn on a ship skippered by Doctor Who!

Check it out; it's true!