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Yes, although I do love the Pi, sometimes simpler is better.

I also think people are using Pis in many applications where an Arduino would make much more sense.
No worries about boot time, kernel updates, Linux hackers, much less power required.
Also, nowadays some Arduinos use ARM processors that are much faster than the original and have enough memory, and built in hardware for internet, wifi, bluetooth, etc.
The Pis are still great for some projects but often it's just not the right choice.

So many people ramble on and on about how good the Raspberry Pi is. The first thing someone asks you if you tell them you can program microcontrollers is "Oh, do you have a Raspberry Pi?".

Sure, it can be the best option for some hings, but very often people use it in simple projects (and even not simple ones) where an Arduino would be so much better! The Raspberry Pi requires so much more work to program and get working than an Arduino, not to mention the fact that an Arduino is cheaper and usually smaller! Raspberry Pis are also slow to boot up.

Raspberry Pis can be useful, but they are overused and given too much praise.