Have to ask, what does it mean to treat a company (such as Hasbro/WotC) unfairly?
As a forum for discussion for RPGs and other games, we can ask whether "we" EnWorld posters, as a whole, have given Hasbro/WotC 'good press' or 'fair appraisals'.
That's a bit tough, though, in that the many individual posters posts, which have a mix of opinion and reasoning, can't be said to add up to a "we" as a tangible group. Or perhaps rather, the boards are informal, and are a welcome place for "reasonable" opinions. Within those opinions, a poster is free to dislike 4E for many reasons, with wider bounds than for many respected newspapers, or for moderated journals.
From the point of view of whether "we" the posters to the ENWorld boards have given the Hasbro/WotC products a fair shake at our purchase $$, that doesn't seem to be a reasonable question. That's hard to say, since each individual poster will have a different pattern of purchases and motivations for or against a purchase. But, I think as far as convincing folks to buy their product, Hasbro/WotC, the producer of the product in question, has the larger share of convincing folks to buy, through a mixture of quality, function, and simple communication.
There is a question, too, of what difference does it make? If the context is the (apparent) failure of 4E, or the (apparent) success of other products, that needs to factor in by whose definition of success or failure, and needs to factor in the question of the actual potential market. And, whether the failure is measured against realistic goals.
That is, to be more specific: 4E has large corporate goals to meet. Perhaps larger than Paizo, perhaps much much larger than Paizo. 4E might be seen as failing because those goals were too high, not because it actually failed by more reasonable measures.
4E might have failed simply because the market simply wasn't there for the product. Maybe, folks have moved to other types of games.
4E might have failed because the initial goals (Online Gaming) were defined unreasonably broadly.
These all might not be real failures, but rather, a failure of expectation. (That may parse oddly, but I'm not sure how to express myself more clearly here.)
Thx!
TomB