It's not defined as a vector through a perceptually uniform color space. They developed it manually, by tweaking parameters of a curve in sRGB until it looked g

It's not defined as a vector through a perceptually uniform color space. They developed it manually, by tweaking parameters of a curve in sRGB until it looked good. But if you plot it in CIELAB or CIECAM02-UCS, it's likely not a straight vector but rather a curved path. A vector would only interpolate between ~two hues (like Vidris, Inferno), whereas Turbo covers multiple hues. Have a look at the lightness profile plots in the post, it should give you a rough idea about how the vector must look in color spaces such as CIELAB.