It's interesting that some view it that way. I view it as their best. If I could pick only one album out of my thousands to take to a desert island it would be that one. It is marred by "Revolution 9", though.
The White Album was probably the last time I looked forward with great anticipation to a record release. I still recall when they finally arrived at the store and I got mine (I actually bought two thinking that they would be collector items).
And I remember that first listen. It was like an LSD trip. the songs were almost jarring in their intensity, the transitions so stark, and the emotions so manic. We found ourselves racing through the entire two-album set in one tremendous binge, only to go back and re-sample selections a second and third time.
I didn’t think it was their best work (for me that would either be Revolver or Rubber Soul) but it certainly was one of their most dramatic albums.