Are the blocknet guys ignorant of the facts, or are they being intentionally misleading?
They're both, ignorant and misleading and hoping the flashy graphics will pull in the like minded.
I want to be charitable here, even if I have to remind myself at times to be so

, so I'd go with "more the former than the latter." As so may complainers & trolls have been so, uh, good as to inform us, doing proper due diligence on Supernet is a tough job that requires a fair bit of time and some smarts. (Myself, I had to take a full day to understand it.) So, really, it's easy for the blocknet boyz to be just plain ignorant of the Supernet facts - so easy, I have to peg it as the common-sensical choice.
[Not that I mind the complexity of the due diligence and the effort I put into it: exactly the opposite. Once Supernet takes off, the fact that I had to put in a day of solid work on the due diligence will certainly ease my conscience.

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As for "misleading," I'd peg it as hypesters hyping their own product. Since blocknet is clearly based on Supernet, they have a PR obstacle that they have to get around. They've decided to do so by hyping up what they consider is unique in their blocknet. As a Supernet HODLer myself, I wouldn't sweat it; it just sounds like they're pre-empting (or fielding) some awkward questions about their blocknet.
In fact, now that the subject of a pre-sale's been raised, I should poke around my own strapped finances to see if I can scrape up enough to buy some more UNITY...