Course...I guess it is clear to those that fly the 777 that you don't really have an understanding of the aircraft - not having a go at you but just stating a fact.
The 777 is very capable of constructing a vertical path identical to an ILS using the flight management system. Flight Path Angle anyone??? The crew could also (had they so wished) used the automation to fly the ILS profile using VNAV without having a valid ILS signal which would have resulted in the crew flying an identical profile to the ILS. In fact Boeing actually suggest that doing so is good practice for flying non ILS approaches....My point? the unavailability of the ILS is no more of an issue than what the captain had for breakfast
Course...do you work for the insurance company?