What was the intent of the media?
This is obviously open to interpretation, but to me I see the intent being that all these tools for creative expression are being combined/squashed/pressed into this thing which is very thin. That's why they chose the press. They also chose the press because it looks visually interesting, they are trying to make a fun ad.
I really can't imagine that anyone in that ad was trying to imply that the iPad destroys those objects, or that those objects should be destroyed, or are now valueless. They are saying that this device contains the functionality of all these big items squashed into one crazy tiny thing. Amazement at what it can do, NOT a desire to destroy or make obsolete real pianos.
From that viewpoint, it's clear they VERY clumsily applied a metaphor (combining + crushing into the iPad) with a visually fun thing (the explosions), resulting in people thinking they want to destroy pianos.
But importantly (if one takes the above as true, which you may not), you can't then say that the ad is trying to "tell that those tools are valueless, obsolete, objects of ridicule", that's not the intent of the author.