A Normal A1C, deadly for a diabetic?

I had my usual check up at the end of March for my diabetes and, like usually, I am always very curious about my A1C.  I use to feel like I put a lot of effort into keeping it down, but not so anymore.  Or have I just adapted?  I do use the Dexcom G4 and that reading every 5 minutes, It is so valuable.   I can always correct when I see it treading up.  I guess it sounds annoying, and it can be, but the maintenance is about 5-7 minutes of your total day. 

Anyways, she said my A1C was 5.8% and I let out a big 'WOOHOOOO' an thought, 'Wow

that is great!'  I thought it would be higher 6's or close to 7% (which is just as well).
To my total disbelief, she did not exactly agree.... she said it could be dangerous to go so low with your A1C being a diabetic, and even told me a story, I guess to ring-truth to it............
Her brother's college roommate was a Type 1 diabetic and always obsessed with keeping his sugar low.  She said he shrived for it, and exercised often.  One day, her brother came in and found his 'type 1 diabetic roommate dead on the living room floor.'  She stated, his sugar dropped so low, that when he was trying to eat, he was not able to chew the sandwich.  She said it was the low blood sugar, that made his brain not able to know how to chew and/or swallow.

A bit harsh of a horror-diabetes-story?  I would say so... I replied with 'Interesting' and let it fade from there.. but I could not believe what I was hearing.  I am being punished for a lower A1C?  She said 'the perfect A1C is 6.5 - 7.0% for a diabetic' ... I have read several blogs and people posting there 5ish-percent-A1C's.  After all, aren't we all trying to aim for a health body?  

I changed the subject and told her I had the Dexcom G4 sensor and it alarmed and beeped or vibrated when it feel too low.  She replied that she did not know I had that device and yes, it helps a lot.   I told her that I understood her concern, but wanted to rule out those nasty complications of Diabetes. Maybe my control is too tight, but I do spike like normal diabetics and intend to have dessert, of course :) It is not all strict behavior over here, believe me... 

I went home and looked at different A1C charts for diabetics - not for just anybody.  I found a few that said 7-8% was 'BAD!' Other charts said the opposite...
It is nice to know I could loosen my control a bit ...I guess.  I am not sure I see myself doing it.  However, I must thank diabetes sometimes, because now I follow serving guidelines, I eat healthier and I am able to keep my figure.  That is important for your gulf coast summer living! :-)