No decks in the meta use special energy exclusively. There's really just no need to run Lost Remover. Sure, you have your Zoroark/DCE, but that's most often a play in Stage 1s, where Donphan and Yanmega are perfectly capable of attacking, or rarely in TyRam, where it's not even a focus of the deck (and besides, Zoroark doesn't really cause anything too much grief). Apart from that, it can of course get rid of Rescue Energy (not that it's that common or necessary) and the odd Cinccino here or there, but there's just not enough use for it to be a good card. It's best to just increase your own consistency with PONT, Cheren, Copycat, etc.