When I look at flashlight apps I don't expect to see any permissions at all,. . .
I've used HTC phones almost exclusively since the Hero. HTC used to package a flashlight app and it was perfect. Nothing fancy, just a fast, light weight app that did exactly what I wanted. Then they removed it. I found the apk on xda and have used it on all my phones. I didn't switch until my last upgrade the the One. I upgraded to the Tesla and think it is the best overall available.
When did they remove it? My One came with a HTC Flashlight app.
(I don't have it now, because I've been using TeslaLED for a while, & remove unnecessary apps when flashing ROMs. But it was there in my original stock ROM).