No one can actually follow Torah. Why, because there's no Temple, no Arc, and no records of who may be a Levite (for the High Priest) ... and mostly because no one has any cattle & PETA.
As for Paul, even Peter commented that he wrote stuff which was hard to understand. Personally, I think the WT fails in its interpretations because
1- They understand nothing about the ancient Hellenistic world and it's various areas
2- No understanding of ancient Greek and word usage
3- Lack knowledge of ancient Hebrew parables/stories. Ie. the lady with the 7 husband trick question. [Apparently bad angel Azazel was in love with her & kept killing her husbands]
4- They read the writings of Middle Eastern peoples from a purely Western viewpoint (And a US one at that).
5- Sometimes "letters" just weren't meant for everyone everywhere. That's why they are letters and not "scrolls" (aka scripture). Personal correspondence.
6- The Apostles in Jerusalem were pondering scrolls, they weren't concerned with some private letter to Timothy (which Paul likely did not write).