He rekindled his rivalry with Jack Swagger for no real reason, joined forces with Zeb Colter in an alliance fans didn't know how to react to, and contested a series of matches with Kalisto that didn't exceed expectations (let alone meet them).
Once League of Nations mercifully went their separate ways in the spring, the writing was on the wall in regards to Del Rio's future with WWE. Wade Barrett's contract was expiring anyway, Sheamus went on to feud with Apollo Crews and Cesaro, and Rusev re-entered the United States title picture, leaving Del Rio to fend for himself without any direction.
His violation of WWE's Wellness Policy and subsequent suspension for 30 days all but sealed the deal that his annhilation at the hands of Randy Orton and John Cena would be the last fans would ever see of him on WWE TV.
Prior to that point, he wasn't doing anything of note storyline-wise, so to those asking whether this will be a big blow to the roster depth on the SmackDown side of things, it shouldn't be.
That said, it is a major letdown that WWE would sqaunder a massive opportunity to make Del Rio the top-tier talent he had the potenial to be the second time around. But much as the premise I began this analysis under, this just draws me back to the same question.
Does anybody care?