Treasury bonds is the most conservative and safe tool of investing, while bitcoin and crypto in general is the most risky investment option,
Treasury bonds investors would never put their money into Bitcoin,because they hate risk.
I would say that it is only risky in the short term, not in the long term, but surely the typical bonds investor would not think so, so you've got a point there.
What the OP says does not only apply to bonds, there are some Bitcoin enthusiasts, such as Saylor, who argue that much of the money that is invested in other financial assets, such as stocks, gold, real state, bonds, etc., will change and end up invested in Bitcoin because it is the highest quality asset that exists in the world.