PDP-8 works this way too. Many people wrinkle their
noses about it,
but I find the skip model to be very convenient and easy to wrangle.
The Honeywell x16 family does this too. It's more or less
definitionally spaghetti code, which is probably the cause of the nose
wrinkling. It'd be interesting to see if the rise in awareness of some
of this sort of "structured code" thinking coincides with a decline in
architectures using skips.
De