Indeed. We may actually get that again in the Second Great War in Texas and Sequoyah. Despite the perplexingly low priority the region would get, we'd probably be seeing a return to that kind of tactic.
Maybe not. The Confederate war plan relied on KO’ing the US in one blow. Supporting a secondary offensive to retake Sequoyah, at the end of a supply line stretching across the entire states of Texas and Arkansas, might be deemed more trouble than it’s worth. The US could sweep down from Missouri to cut off a thrust into the region, in addition to Dowling’s force moving into West Texas. More likely, I think, the CS might devote a substantial portion of its bomber force to destroying the fields and cutting the railroads that link it to the rest of the US, while hoping to win the war and the territory in Ohio.
So Sequoyah might just be a favorite topic of AH writers ITTL—‘What if Jake Featherston had focused on Sequoyah and retaking pre-GWI Confederate territory?’ Akin to questions like ‘WI Hitler had stopped at Czechoslovakia?’