Let's sum this up.
1. iPhone user takes phone to shadetree workshop, gets TouchID button replaced with aftermarket parts, voids warranty and current user agreement, and now owns what amounts to an insecure, hacked device.
2. User then connects said hacked, voided hardware to Apple and requests free software upgrade (for improved utility and security updates!), clicks 'I Agree' on user agreement that the hacked, voided hardware (by definition) violates.
3. New software detects hacked, voided hardware, and shuts it down.
4. User is then upset that Apple did not accommodate the violation of user agreement by writing code that provides a workaround to enable hacked, voided hardware to still function in a security-breached mode.
5. Some people on MacRumors forum appreciate that Apple takes data security seriously.
6. Other people on MacRumors forum feel that Apple should soften security protocols in order to accommodate users who knowingly or foolishly have their hardware hacked, and that by not doing so, Apple is evil and greedy.