Where would humanity be if there were no experiments, if we did not try to improve something that was good...
We would still be in a cave admiring the invention of the wheel 🙂
You need to experiment and research, but as seckorama wrote, take care to always leave a backup, because if you don't have it, the experiment can cost you a lot.
Example in my country, replacing the core system of a mobile operator. In the desire to create a better and more modern solution, they performed an upgrade, but without the possibility of restoring the databases to the old software, and caused a collapse, which has been going on for 5 months...
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In your example, it is obvious that they did an amateur job and didn't think well about the consequences, the backup, and other variables that we aren't even aware of...
In general, it is like you said... Without experimenting and figuring out different "approaches" we would still use the cube wheel... because it works...
Mobile operator A1 Serbia.
Maybe I could understand their decision, if they didn't have a six-month problem when they did the same thing in Bulgaria.
Maybe that's why the CEO was changed? 🙂