Note 7 on the same page linked above would seem to set up the guidelines for grid tie switches. The language here appears similar to the way the NEC is written

Note 7 on the same page linked above would seem to set up the guidelines for grid tie switches. The language here appears similar to the way the NEC is written, which can seem confusing unless you use it all the time (as I do). If one had a transfer switch, the renewable generator would no longer be grid tied. The NEC is full of statements of this style, and often without specific references to the underlying section that defines, e.g. the times where a transfer switch is legal. The code expects you to view it as a whole, and be familiar with the interlocking sections.