Of course you are not being unreasonable.
Her music is bland mainstream pop, there is nothing particularly innovative or creative in what she produces, and nothing in her lyrics shouts as exceptional either, it's just average pop lyrics targeting teenagers.
The point is that today's music industry is not really about the music itself, but much more about the stage persona, their social presence, the ability to teenagers to relate with them.
What has happened in the last 20-30 years in Korea and Japan, with the music being dominated by the "Idols" is now taking over the music industry in USA and Europe.
To be a music star, you need to be good-looking, young, fit, need to be great on the stage, good at dancing, performing and cultivate your social presence. Being a musician is a really minor part of that, and to some extent, irrelevant.
Most of the current stars have limited music knowledge, can hardly play an instrument and from a strictly perspective of their musical talent, mediocre at best. But that is now what the industry is about today, it is about creating idols.
Compare that to 40 years ago for example, where you could be one of the greatest band in the world and have as your frontman Mark Knopfler, not exactly the sexiest man in the world, but a genius with a guitar on his hands.
Today he would have zero chances of success, no one cares if you can actually play an instrument.