It is hard to say w/o being there and being hands-on. But I can say on smaller scale systems when the propeller, impeller, or other device connected to the motor has impacted solid mass it unfortunately reverberated through the ancillary connections wiping out the gears and clutches. I thought I could fix it but ended up scrapping it in the end because for me it was beyond my skills and scope to get everything solidly connected to function under stress/load even though at idle it would function ok.
On quality I respectively disagree - it's a corporate culture - Six Sigma Quality, Malcom Baldridge Corporation awards, ect. ABB has serious issues, change the corporate culture, win a Baldridge type award and I will be a believer too.