This seems to be the difference, and I agree. I was all "Lightning Bolt kills the Skimmer, easy win", but Reeplcheep just holds and waits. The turn that Stream of Thought is cast to recur both other cards, there's a window for the Skimmer to come down when dte will draw the Bauble and be locked out from Bolt.
A while ago we had a short discussion of the worst or most embarrassing cards that were banned. The banning of Lightning Bolt is interesting because it comes six rounds after
Seal of Fire got the axe. Looking back, Lightning Bolt would have scored 2 fewer points (WD instead of WW against Crack the Earth).