I think it is the first chrystal clear indication that he is nowhere near the player he used to be.
He has had some bad showings before but he has still sprinkled in some quality performances in between them to make it look like he might still have some in the tank. His win over Fong Pang Chao in the challenge match, his reasonable showings in a couple world championships, his DCC performances.
But this was 8-ball, in his prime Efren was without a doubt the best 8-ball player on the planet, and he just got drilled in 5 straight sets. There is no way a younger in his prime Efren gets beat like that in this game on these tables. It is a sure sign that Efren that was no longer exists, he is still solid, but the Efren that was the best player on the planet and the most feared gambler? He is gone.
Anyone who was stating "just put up the big money and see what Efren can still do". Sorry, but I think that the ship has sailed. I do not think Efren wants anything to do with playing quite afew of the top younger players in pool for cash straight up anymore, he is not the best money player on this planet anymore.
In 1-pocket he might still be a threat to beat anyone, that is the one game that is slow enough paced and that gives the 2-way shots that can still save people with diminishing potting ability. But even in that game, I do not think he wants any of Scott Frost, John Schmidt, or SVB at this point.