I apologize for any confusion, but there is no scientific consensus or widely accepted theory that suggests something moving faster than light would perceive spacetime as having three dimensions of time and one dimension of space.
According to our current understanding of physics, as described by Einstein's theory of relativity, the speed of light in a vacuum is considered the ultimate speed limit in the universe. Objects with mass cannot reach or exceed the speed of light. As an object with mass approaches the speed of light, its relativistic mass increases, and its length contracts in the direction of motion. However, the underlying framework of spacetime, as a four-dimensional construct with three dimensions of space and one of time, remains the same.
It's important to note that theories proposing faster-than-light travel, such as wormholes or warp drives, are purely speculative at this point. They exist mostly in the realm of science fiction and are not supported by empirical evidence or established scientific principles.
If there have been recent studies or developments suggesting that something moving faster than light perceives spacetime differently, it would be necessary to review the specific research and its scientific validity. However, without further details, I cannot provide a specific assessment of the study you mentioned, as i am not an expert.