“It has been well over a year since the U.S. Court of Appeals for the D.C. Circuit issued its landmark opinion in ACA International v. FCC, 885 F.3d 687 (D.C. Cir. 2018), which struck down the overly expansive definition of an ‘automatic telephone dialing system,’ or ATDS, proffered by the Federal Communications Commission in 2015 ― a decision that undoubtedly changed the face of Telephone Consumer Protection Act litigation for the immediate future (or at least until that court or the U.S. Supreme Court issues another landmark decision or the FCC issues an interpretive ruling)."