> That is correct. Interval currently is only used when instrumentation > is enabled through progressive_explain = analyze.
I guess there would still be a point in printing the plan on a regular interval when instrumentation is disabled. In that case the only thing we would see changing in the plan is the node currently being executed. But with that we add more overhead to progressive_explain = 'explain', that in that case will also require a custom execProcNode wrapper.
