@alabut
In fact, these devices are commonly hacked and exploited by cyber criminals when someone continues to use them after they've stopped being supported because the vendor doesn't bother to patch them anymore despite vulnerabilities being discovered. This has been a huge problem for people's old IOT devices getting added to botnet clusters to be used in DDOS attacks or as a proxy to mask their source IP address. So at least unlocking the boot loader means that it would be more possible for an end user to upgrade their old IOT devices to a community supported release that still gets vulnerability updates.