Translation #1: There is a coil in the table. There is a coil in the back of the phone. The 2 coils act as a transformer with an air core. That only works if you bought a new phone. (And paid huge amounts for it including the 2-year contract.)
Problem: The coil in the table will also induct energy (induce electricity) into anything that conducts electricity.
So, if a child puts a phone on the charger area that is not one meant for rear-side induction, there will likely be problems.
Library books have chips with high-frequency antennas. The chips help libraries prevent theft. It is possible that putting electricity into the antennas will cause problems.
What else could go wrong? Lots. Some of the chemicals in your body are conductive. So, if you rest your hand on the table, the coil will cause electrical current in your hand.
Translation #2: The CEO of Ikea has no technical knowledge.