Sometimes the scripts on xda-developers come bundled with an older adb version specifically because they don't expect people to know how to install it themselves.
Although, on a second thought if a user then decides to run the `debloat-google.sh` without knowing what he does the user might end up quite frustrated as a result. So I guess you're right.
I think google has been gradually restricting what adb is able to do.
https://github.com/A2L5E0X1/debloat-adb
Sometimes the scripts on xda-developers come bundled with an older adb version specifically because they don't expect people to know how to install it themselves.
Although, on a second thought if a user then decides to run the `debloat-google.sh` without knowing what he does the user might end up quite frustrated as a result. So I guess you're right.
I think google has been gradually restricting what adb is able to do.