@molusk77
I have not received my A1 yet but after looking carefully at Bambu’s fix, I agree it cannot help much.
From the videos I watched, I think the problem is mostly mechanical.
The head of the printer, in its today configuration, does not / cannot push the trigger of the ejector fully in its position to the left and therefore the blade does not come to its correct right position.
And may be the movement is also too fast.
The plastic fix seems effective, like you said. Bambu should integrate this in a future redesign of the trigger with a wider head.