To me it suggests that Waite might have done it this way on purpose, a deliberate blind which is in plain sight. Albert Mackey in his
Encyclopedia of Freemasonry (Vol. 1 1873 & Vol. 2 1878), a work Waite would have no doubt been familiar with, also believed that Jachin was south:
"It is the name of the right-hand pillar facing eastward, that is, on the south, that stood at the porch of King Solomon's Temple."
The rest of Ezekiel's vision (47:1-12) describes the stream becoming a river which becomes a river of life:
"And on the banks, on both sides of the river, there will grow all kinds of trees for food. Their leaves will not wither, nor their fruit fail, but they will bear fresh fruit every month, because the water for them
flows from the sanctuary. Their fruit will be for food, and their leaves for healing." (emphasis mine)
Coincidence?