Originally Posted by
Mzfroste
Because Miracles doesn't run TNN or SFM.
And the upside of UWr over Esper, in my opinion, that UWr mana is much stronger, as you don't have to fetch out the 3rd color, black, t1 to make proper use of it, which forces you to fetch non-basics to not expose yourself to wasteland to hit spells on curve, and also taxes your opener in terms of what basics your fetches allow you to get. And the slots that Thoughtseize take are typically the Spell Pierces from UW / UWr. While I do think having a mixture of disruption in terms of discard and countermagic is better than just countermagic, the UW shell gives you access to some the best hatebears, which still allows you to diversify your hate.
Basically I think you're overestimating the difference in Esper and UWr ability to fight combo, and I think you aren't giving the core strategy of SFM / TNN enough credit for reasons to play the deck over other UW control archtypes.