In a poll of the membership, the vast majority expressed a concern that SFWA was growing too quickly. A study group felt that the new website was partially to blame for this expansion and voiced nostalgia for the previous website.
To that end, in a unanimous decision, the Board of Directors of SFWA decided to revert to the previous version of the SFWA website, citing consistency and tradition as two of the key reasons.
The full details of the decision are here.
Edited to add: For those stumbling upon this late, this was SFWA’s April Fool’s joke.