That's kinda bullshit. Like, yeah, 30 Minutes delay on an ICE Journey aren't necessarily uncommon, but with distances where the ICE makes sense, they're usually faster than driving, and a traffic jam underway that delays you by about that isn't all that unlikely on those distances either.

With more local transport, it usually runs on time for me, and I use it almost daily. Might vary by region, though.

Sounds like one of those people who prefer standing in a 20 minute traffic jam instead of giving a chance to public transit. If you actually use the german trains from time to time, you will notice how well used they are. They are admittedly often late though.

In Canada, we have Via rail. They line you up like you're at an airport and check your ticket before you board the train, and also check your ticket once you're on the train. They also have enforced weight restrictions on baggage. The trains share tracks with freight, meaning that the train has to stop every once in a while to let a freight train pass. All this to take longer than driving and cost alot as well.