She’s described as an empath rather than a telepath but she does display telepathic abilities. I think she’s just a weak telepath by betazoid standards and that’s why they highlight her abilities as an empath. In Encounter at Farpoint Troi is able to communicate mind to mind with Riker suggesting that with some time and emotional connection at will or continuous mind reading is a possibility for her.
Tech company that owned and operated experimental high tech death machine say their regulatory reports were wrong because they are bad at ubiquitous 40 year old tech.