Exactly. He may be a solid middle tier shortstop but there are only 2 shortstops you can actually consider "elite" fantasy options. (I wouldn't qualify Reyes as elite in an OBP/SLG league).
Lowrie is also has a career line of .264/.332/.415, so it's not like he's some safe bet. He has one good, not great, year and has injury history on top of that. He has good pop, will probably record a 5-10 ranked slash line, but offers no speed. Short version: a quality option at shortstop but nowhere near elite.
I also agree with you on Kemp. When healthy, I still think he can be a very effective option. I would be surprised if he doesn't hit at least 20/20 over a full season.