You're describing a UI that I've only seen in cheap hardware store flashlights. Yes it's infuriating when you can't just turn a light on or off, and choose the mode you want. I use strobe when crossing streets at night but my lights make it easy to access that feature when I want it.
Who is this "favorite flashlight manufacturer"? I find it odd that you both have a favorite, and buy lights that act like this. There are thousands that don't.
Are we still reading Washington Post?