If so, the following couple of resources should serve to enlighten you on what the so-called "Contemporary Grace Movement" is and why many of the Reformed servants of the Lord have taken up arms, as it were, against TT's take on sanctification and why he got ejected, ironically, from the "Gospel Coalition."
A brief, critical explanation by Ligon Duncan:
A more thorough and passionate explication by Rev. James Barnes:
Alternative link: Critique of the Contemporary Grace Movement