After reading this discussion i want to give my opinion on the points mentioned above.
ETCS not working on german routes: I tested the ETCS system on Im koeblitzer mountain route reloaded v3, Hamburg - Hannover, Munich - Ausburg, Three Country Corner Route and Kóln - Koblenz, it worked perfectly on every route.
Max traction effort and max braking: The Intercity Direct runs in "Sandwich" mode, so that means one locomotive in front, in the mid you have the carriages and then the last locomotive, two locomotives gives 2x the power.
"Chris could have saved objects": true, he could have done that, but the tried to make the train as realistic as possible.
Noise while in curves: the train does have those, and they are realistic, search for a cab ride of the TRAXX in the netherlands, you will hear the same noise you hear in Train Simulator.
A unrealistic beeping noise: Do you even know what ETCS is? that beeping is realistic, in the real thing ETCS also beeps with a new speed limit or when you don't obey the speed limiy.
"copied sounds from the GTW": if you have ever been on a BR186 you know that they sound the same.
No PZB/LZB: Chris used all the objects in the cab, he tried to put PZB in but there was not enough space for objects left. You have a BR189 with PZB, we don't have one with ATB. We have a BR186 with ATB, you don't have on with PzB
"A NSTRAXX doesn't exist": Yes is does, how can you explain the picture i send with this messsage? the dutch one has ATB, i don't think your german version has that. 