The plan is still to link SF and LA once a clearer funding situation materializes, the project has since been scaled back as work has already started between Merced and Bakersfield. If you want to blame someone, don't blame the politicians who are trying to make this happen, blame the local politicians along the route and private contractors who've been hobbling and sucking the blood out of this project since it was announced.
It's insane to think that this would actually be completed. It's more like the stealth fighter project that should never have gotten funding, or should have had its funding cut decades previous at this point.