I hear ya but receiving threats aren't carbon copies. A good TE frequently creates the most optimum match up problem for defenses. A good TE can be the key difference maker in moving the chains & RZ (moving the chains consistently is, arguably, the most important item to be done on the field). The matchup issue has that kind of domino effect.
Don't get me wrong, I know LT is a very important spot. But we are not starting ground up at the LT spot while we are with TE. But as mentioned, if TE can be filled via non draft roster building then I'm good (until such time I reserve the right to fret )