Lol,
That sounds exactly like the critics of the “plastic A320” over 30 years ago. It will never last!
All new tech has growing pains. These new geared engines are a huge leap. Give it time.
Maintaince nicknamed the A320 the A360 back in the day. It would go out and need a computer reset. Back to the gate. Reset and leave.
They nicknamed the E190 the E180. It left the gate and needed a computer reset. Back to the gate and stayed.