Given the information we have from people doing full builds using the right year tub, the weight in ITA has been deemed acheiveable for the foreseable future unless some new information comes out. Similar situation to the 944 8V in ITS.

The vote was not unanimous.
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Cars that fit the process can have some expectation of being competitive.
So if you get the exact right tub and do an expensive, time consuming build they can probably make a weight in ITA that fits the process.
Or you can build a car that meets the process weight in ITB without all the extra effort.
I though the idea behind Improved Touring was to take a stock car and change the thing that are required to turn it into an effective race car, not to have to be required to do a complicated, expensive build in order to make weight.
If the car can race at process weight in either class, why in the world do we make harder than it has to be.