>> I guess you can forget about vacuum bagging veneer work since the most a vacuum bag can give you is only about 1/100 of what's needed.

Well, as you said, you have not read the article and are relying of second hand info. The article dealt with a rather narrow type of joint. Namely, edge to edge or other joints where maximum strength was a criteria. There is not much strength needed for veneering. Any adhesive that keeps the veneer from falling off is sufficient. But, vacuum bagging would not be the choice for structural joints.

As to creep, clamping pressure does have some effect. The more closely you can bring to wood surfaces together, the less adhesive there is to stretch.