If adb is unrestricted and can work with the Linux command shell (something I seem to remember I had read about before; you will need to enable the developer mode to use it), which is aparently a separate system but runs on the same device, although if it has the ability to communicate with the main Android system using adb (which it might be reasonable to require that to be explicitly enabled with another setting, for additional security in case you do not use adb), then this would help since you do not require another computer that would be compatible with adb in order to do it.

However, I think there are other things they should do as well (in addition to the other things) if they want to improve the safety, such as looking at the apps in Google Play to check that they are not malware (since apparently some are; however, it says they do have some safeguards, so hopefully that would help), and to make the permission system to work better (e.g. to make it clear that it can intercept notificatinos; there are legitimate reasons to do this but it should require an explicit permission setting to make this clear).