For my job, I travel all over Germany very often. I take the car, train, bus, or sometimes even the plane. The train is the most comfortable means of transportation in Germany. Of course, there are delays, and sometimes mistakes happen that result in very long delays. But where doesn't that happen? I find traveling by car to be the worst. How many times this year have I been stuck in traffic jams for several hours without being able to go forward or backward? No one pays me compensation for being late. With the train, I even get some of my money back if we are late. I find this blog post ridiculous. The rail system in Germany is extremely complex and tightly scheduled. We have regional, long-distance, and freight traffic on the same tracks. Of course, the train can't just stop anywhere when there's a problem. Grow up. For those who are interested: I traveled from Berlin to Konstanz for the Christmas holidays, and both trips were on time. I paid €70 per trip and didn't have to worry about traffic, icy roads, or snow. I worked on my laptop for 6 hours on both trips. It couldn't have been more relaxed.
OP said that was the main reason, but that's complete nonsense. Most people go there primarily for the music. The artists there are world-famous DJs who tour around the world in their particular niche of electronic music. The visitors are mostly enthusiasts who like this particular type of music and are well aware of the differences between the various artists. If you know what you're doing and why you're there, the chances of being rejected are actually relatively low.