No. That is Spanned volume. JBOD is and always was what it's name says, "Just a Bunch Of Disks". What you do with disks in such configuration is up to you. You can also make soft RAID, mirror, striping, whatever.
According to an old article from 2005 used by wikipedia, yes. Seagate and others (like a newer article from the same source as the older (TechTarget) says:
"JBOD, which stands for just a bunch of disks, is a type of multilevel configuration for disks. It refers to a collection of disks in a computer system or array combined as one logical volume"