^^ Yes. I also have the same thought. But, if you see that is the difference between the SG and CG planning / implementation. All the other busy stretches we are talking about are in the hands of state govt and they take forever to implement a project. Even in chennai, the SG controlled projects are poorly planned and executed (usman road flyover).
SG lacks long term thinking and they would wake up only after the problem has got very much beyond hands. Madurai ring road is one such example which got attention after much hue and cry.
Anyways, I am happy this is happening and this could lead city to develop beyond umachikulam in a faster rate. With people able to fly in and out (pun intended) of the city in matter of minutes, that area is something that will grow faster.