Yeah, even when considering them briefly that was an absolute deal breaker to me. 4/6 is still far less than the 7 years you get from Google/Samsung (at least their higher end models) or however long iPhones get updates, but similar to some competitors already mentioned in this thread from Xiaomi or vivo.

And I guess many will upgrade within 6 years anyways, whereas with 2 years it was basically guaranteed that the devices will spend a good part (maybe even a majority) of their lifetime without any software and security updates.