Reasonable Doubt is purpose-made for those aggressive blue tempo decks, the kind which try to force through damage every turn and use counterspells to prevent opponents from catching up
That story was also a bit strange, and, according to Mark Rosewater, did not resonate with fans
They could reprint these cards by creating similar but worse cards by slightly changing their mana cost, another stat, or type, but thats not the issue
Note that in later eras, Annul and Steel Sabotage were created as superior versions in blue
Replicate spells are harder to counter than squad spells
Then being xxx/250 instead of 500 helps keep those prices high, as its done for the Murders at Karlov Manor serialized cards