The T2 chip also controls the secure boot functionality, I don't think that Apple would skip adding it in just because it doesn't have the touch bar.

Here is a link from Apple that says all of their Macbook Pro models have T2 chips from 2018 onward.

https://support.apple.com/en-us/HT208862

But I still may be wrong though where did you read that the MBP without a touch bar doesn't have a T2 chip?