Interflug
I see what you mean, no, we would not know that the weight is out...and as to when we would find out, maybe during flight, maybe never! I dont know what the weight of the accident aircraft was, but I doubt that flying close to our Vmo or Green Dot was causal. If Im going to be picking my way thru heavy weather, I would consider delaying a step climb or stay a level lower to give myself a bigger margin over high and low speed limits. What the AF crew did remains to be seen, but I doubt that they were pushing any altitude limits.
As for "Airbus takes control away from the pilots"....not true. There is simply a limit as to what you can do TO the airplane, ie, it limits the amount of G you can pull, the speeds and attitudes you can go past etc. If the poster is implying that somehow a limitation on the pilot did not allow him/her to recover from an unusual attitude, then that is also incorrect.