(anything is possible in "could have been")
And, if you'll go back and re-read the posts that have thus far been made, this thread is about how the Shard of Wisdom
should work, rather than about how it
does.
Teaches: Replace current active ability with a new active ability. (See Liquid Shadow, Acceleration, Mitosis, Butterfly Effect)
I don't know what you mean by "teaches", but if you use, say, Acceleration on a creature with an ability then, where that ability was previously, you now have the word "Acceleration". If you use a Shard of Wisdom on a Quinted Dune Scorpion, you still have the word "Neurotoxin" under the card. Similarly, if you use a Shard of Wisdom on, say, Mind Flayer, you can
still Lobotomise creatures with the Mind Flayer.
So, no, what you're saying doesn't make sense.
Then, by your argument, you've explained why. Since SoW was made with Psion in mind, it is not farfetched to say that SoW bestows psionic abilities. When done so, the target, instead of attacking normally, chooses to attack with it's newfound psionic ability instead of it's norm. And it's clear that one cannot attack with a stinger and damage physically when done so with such power.
And is there any reason why the Shard of Wisdom cannot cause a card to make the same attack, only psionically? There are, after all, psionic equivalents of the attacks which are lost.