We understand what you are saying, you are just wrong. The gentleman explained it fine here:
The warlock hero power as a card would replace itself and draw you a card, netting you 1 card. The end result (minus the health loss, which the comparison was made because health totals aren't always relevant)is the same between this and arcane intellect, you draw one card. The paladin hero power as a card would not replace itself, you put a 1/1 into play. The only thing you could argue is, similar to what the gentleman said the paladin hero power as a card would be a 2 cost card that put a 0 cost 1/1 into your hand. In that case it replaces itself, netting you one card, but that one card will be a 1/1 every time. Novice engineer does not replace itself with a 1/1 every time, it puts a 1/1 on the board AND replaces itself with a new card, obviously this is not equivalent to paladin hero power.