JP, I actually like some Euro-Dance, and liked some of Cascada's older records. A lot of Euro acts go with a tried and true formula yet the best ones mainly release records that aren't remakes. Da Buzz, Lasgo, Milk Inc., and from the 90s you had brilliant Euro acts like Culture Beat, Snap, and Jam & Spoon. All 3 are from Germany, like Cascada, yet Cascada is very mediocre compared to them.
Italy for example got really annoying in the early 2000s when every act sounding like Eiffel 65 with that annoying vocoder (which is now everso present in Hip Hop with T-Pain and now Snoop) and the same bassdrum.
Cascada remade "Sk8er Boy" for crying out loud. There might be a serious cheese storage in Wisconsin if this song picks up steam
You're absolutely right that a lot of Rock acts fall in that same trap, especially when it comes to the harder Death and Doom Metal bands of the 90s. AC/DC though are great with "Thunderstruck" or "Back In Black", just like Green Day were awesome with their 3 chord records, like "Longview" (fantastic gen-X lyrics), "Welcome To Paradise", "Brainstew", and their big hits. Or you have thhese awesome theatrical bands like Iron Maiden's "666 (Number of the Beast)", or "Fear of the Dark".
And again what does Cascada bring to the table? An Avril Lavigne cover song, yippee...