From the entry in the OP:
"I am an omnist, and believe in all religions".
I can believe that all religions exist, but belief in all their teachings? Especially dual/non dual thought?
The meaning seems to have shifted, maybe to accommodate the New Age tendency to borrow all the nice bits from different religions and mash them into Stevia-sweetened power smoothie. Hence you get the likes of Wayne Dyer pronouncing on everything from the Tao to the Bagahvad Gita to St Francis of Assisi. The idea that all religion contains ideas and practices that can be helpful makes sense - Buddhist meditation, yoga, pacifism - but are those things actually truths?