First off, take a deep breath. Regardless of the outcome, you still have the same kid. If the scores reflect what you feel in your gut or open your eyes to something that makes sense - then great. They will likely be useful in future advocating. If the scores don't match what is in your gut, take some time and consider what they might be telling you that you've missed, use that and if there are other parts that don't seem to resonate, move on.

As for what to do with kids.... it really depends on a lot of things. An MG kid that is happy in an above average class with a good teacher that is willing/able to differentiate as needed - I probably wouldn't panic or do anything to drastic to change things. A compliant, people pleasing PG kid that is happy, well I don't know that I'd be betting on that continuing to be the case unless it is a spectacular teacher/school. Kids like that might be hesitant to show their unhappiness but often the cracks will eventually start to show if you know the signs. So much depends on the kid, LOG, personality, school fit, teacher, peers (or lack thereof), etc. Without knowing those pieces it is really hard to say.

As for your DS - my DS10 turned out to be 2e but the signs have been there his whole life (not saying your DS will be 2e, just saying I think I get what your gut is telling you about school at the moment). I knew school was going to be ummmm interesting. I didn't really get just how interesting it was until we were a couple years in but we have eventually found something that works. Honestly with him I just take it year by year. I have no idea what the future brings but I've learned to be be flexible and adjust things when needed. We do the best we can in the moment and I'm sure you will also. Exactly what that means is hard to say but there are a LOT of people here who can relate and offer more tailored advice as you run into things so know that you aren't alone.

Good luck!