Is October difficult?

When Elijah taunted the prophets of Baal, he suggested that perhaps Baal was asleep, or taking a leak, or on a journey.

It seems that the Japanese tenth month is the month without gods, when all 8 million of them go on vacation (pilgramage?) to Izumo Shrine. I don't believe the wikipedia attempt to fiddle with the etymology--I'd guess that the spoken language's usage would dominate, not the spelling.

After the Japanese adopted the Gregorian calendar, October became the problematic month. Interpret as you please.

Why? It's hard to tell--the suggested "plausible" explanation suggests that it began as a family reunion and match-making discussion session, but the background info isn't enlightening.