Can't fault Tito for trying to build a better mousetrap with the training software on RST.
There's been plenty of readily available, adequate gouge out there for many years. The low-tech PowerPoint and MS Excel simulations of most of the cog sub-tests, as well as solid info about the tests and sub-tests (courtesy of the vendor for the test), have been around for a long time and easy to find if someone went looking for them. For the folks who wanted more, that existing gouge even pointed to the Lumosity games you could play that would closely simulate most of the cog tests.
RST has just one-upped that existing stuff, and from my perspective it appears to be a nice improvement. Weather or not that improvement is worth the coin to join RST is going to be up to everyone individually.
Most folks who'd never had the chance to see the actual cog test at either a Delta regional interview, or hadn't seen the very similar tests that the military uses for TBI screening, saw the cog as this big mystery boogey man. I suppose if someone really wants to knock off the "scare factor" of not knowing exactly how the test works, dropping a couple hundred bucks on the RST trainer is money well spent.