Who writes this crap!! The main reason its losing ground is MONEY; yes, people are god damn cheap and we know it.
The Chromecast thing is $40 (sometimes, $30), that's 3-4 times cheaper than the Apple TV. Roku lost just as much BTW and its just 1.5-3 times more expensive.
Also, the processor in the Chromecast is abysmal and can't be compared to the one in the Roku (any type) or Apple TV. But, hey they're ALL THE SAME... I guess Toyota should stop selling Lexus because its being beat in sales by an Hyundai Accent
Next thing they'll tell us is that Android has a bigger market share... Oh NO!!! (sic)
Was there a Cyber Monday sale on exclamation points and capped letters?
While it's easy to attribute the success of the Chromecast to nothing more than people being cheap, I think it completely ignores the reality that 1. Apple has basically let the ATV stagnate. 2. The Chromecast does what it does very well. 3. It's ecosystem agnostic and beyond simple to use. 4. The cost of entry is not a hard barrier to cross.
They are all the same in the sense that they are media devices. Each has it's strengths and weaknesses. Based on the consumer's use case, one might be better than the other. There is no de facto best one. I have multiple Chromecasts, a Roku, and a Fire TV. The Fire TV will be re-gifted since I have rarely used it. That doesn't mean I think it's subpar. It just repeats functions that I already have covered.
The car analogy is pretty bad. But that's not your fault. All MR car analogies are bad. We don't know how to do them.