EWS Its NOT failing any "integrity check" because you HAVE NOT EDITED THE SYSTEM PARTITIONS (we've established this fact based on YOUR statement that you did this over ADB). All you've done is DISABLE applications from userspace.
There is a big difference between killing/disabling an application after the device has booted, and booting without certain hard requirements being met. My prior statements all stand. You cannot edit those applications out of the system partitions and expect the device to boot.
To make a very simple analogy.... if you erase the BOOT partition after the device is booted, it will continue to work normally. But it sure as hell won't reboot.