Millions of Superboxes and various digital picture frames say different.
Kimwolf exploits vulnerable Android Debug Bridge (ADB) services. Many low-cost TV boxes come "pre-infected" with proxy SDKs; Kimwolf then scans these residential proxy networks and exploits the devices within minutes as it propagates.
https://www.cloudflare.com/learning/ddos/glossary/aisuru-kim...
This is like saying that SSH is insecure because some device vendors install SSH, permitting root login with a default password of 'root'.
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Well yes, but those won't get Google's new updates either. Open ADB on 5555 was a problem we solved almost a decade ago and these devices are still vulnerable. Even further restricting ADB in the latest version won't do anything to prevent that.