Earlier quoted context omitted.
Is it meaningfully sketchier than downloading a .deb and calling dpkg -i on it? Or cloning a git repo and building it?
The difference is that the stream coming out of curl and entering sh is ephemeral. With this device, there is no checksum or signature (as with apt). If you pipe curl into sh, you also leave no trail of what you've run. A malicious actor can also hinder analysis by serving different payloads per user-agent, per time of day, per subnet; or only serving the malicious payload intermittently. With .deb-files you're expec…
Is it really meaningfully easier to analyse? I get that it feels better, but I'd bet that the people saying this would fail to catch the backdoor every time.