That could be - but the fact is that the brand is deceiving people with their very liberal use of the word "professional", at the same time as they don't provide power specs (in North America).
If nobody but me cares, that is of course a problem - as it means that the deception mostly is successful.
I'm not sure if you've spent much time in North America, specifically the US. I've never been to your neck of the woods (I'd love to someday, though), so I don't know how things work over there. My point, though, is that unless there's some regulating body that is tasked with deciding when a manufacturer or producer can put a specific label on a product, you can pretty much say whatever the heck you like about your product.
For example, a walk down the hardware store aisle here will find the word "professional" on a huge amount of products. Soaps, trash bags, faucets, you name it. Saying "professional grade" in the US, usually means that the manufacturer is competing against a lower priced product. Either that, or they themselves make a lower priced product, don't write "professional" on it, and charge more for the often miniscule difference that separates the two items.
Unless there's a specific definition, regulated by a third party, around here, it's just marketing. For the most part, we leave it to the consumer to wade through the hype to find out what's good and what's not.
Your input, that Echos have lower power than their more expensive counterparts, employ older designs, and to your trained, but not personally experienced eye, seem to have cheaper plastic, is good information. That Echo builds a darned fine saw and tons of other great OPE that gets used and abused commercially is also good info. That you can buy a pretty sweet 60cc saw brand new for $400 in the US is awesome. Is it a 562xp? No, but it's husky's job to make the differences clear, not echo's.
Nothing wrong with what your saying. Busting into someone else's build thread to say the same thing you've said a hundred times before is rude though. I know other people have told you that also, but since you've not acknowledged that fact, I'm repeating it. It's worth noting that Jon and Randy get lots of "likes" for their posts explaining this to you, while the number under your posts repeating your position don't get much positive feedback...
Anyways, nothing personal, just trying to be a good community member.