Really? Care to back that up? As others have stated here, if you suffer loss of IAS the first rule is DONT PANIC! It's just an indication you've lost.
Pilots don't thing like you do about A320 on high altitudes. You won't hear that in the "news". In this case, the crew did panic. You have a squall line of 100Nm. You don't do it like this, turning sharply 120 deg and climbing abruptly to 38.000 feet. The procedure is not the best.
I think you'll find that being close to stall margin at altitude is not unique to the A320 - it's basic physics/aerodynamics.
Well, yes you are right, but still A320 has very narrow stall margins in that altitudes (if you compare it with, for example, an 737), and there has been some of cases with sharp banking and almost stalling above 35.000 in simple heading mode.
Combine it with the company and crew where profit is above safety and you will have this situations sooner or later.