Crafty, my synpathies. You really are caught in the middle here.
I'd love to talk to your builder about this. I'll bet he, as with others in the Trade, isn't a big fan of cantilevered structures. They put a hell of a load on their mountings. This is why manufactures usually specify a minimun height of brickwork above the canopy, to counter the turning force imposed by the canopy and wind/snow load etc.
OK, that's just a personal view.
What's important is that it's been there, happliy for four years. This year has seen some pretty unusual extra loads imposed on structures. That's what insurance should be for.
To be fair to the installers, assuming they fitted exactly as the manufacturers dictate, then they have done the job "in good faith". My first thoughts (in your previous Q,) was it might have been a bit of a quick, "cowboy" installation. It's beginning to look as though they simply fitted it using tried and tested standards.
This is only my opinion, but I think the Assessor is struggling. The "frog" business is a nonsense. It's a "dent" in the brick that is fully filled with mortar when laid. It is NOT a void.
Solid bricks are rarely used these days........... certainly not engineering bricks halfway up a standard cavity wall. In fact, many commonly used facing bricks are made with several holes or voids within them as normal.
I'd like to hear your builder's reply when you tell him about the "frog" issue.
It's been there for four years.......... it's been subjected to an abnormal load ........ Insurance companies will habitually clutch at any available straws.