They are referring to the receiver portion of the chip. Too much signal will block the receiver from operating. More power being received will heat the sensitive devices in the receiver and it will stop working, permanently. The text was likely a computer translation from another language.'
thank you! so theres an actual risk of damaging the nrf chip. i tried to look for that in google but couldnt find any related info. in this case probably its best to start with low PA setting and increase it to the next level if needed.
this is stated in every nrf24l01 module datasheet from ebyte.
i actually didnt know you can damage the module with another module, ive always been careful with a good power supply and keep everything at 3.3v but this is something new.