That's not what this actual data shows. While there has been an increase math deficiency, the increase in failure rates happened recently and probably only partially related to the math preparation issue.
I think we will make a major mistake if we think math preparation fixes this - especially in CS classes where AI literally calls out to be used for projects. And it certainly doesn't explain me hearing the same problems are happening at MIT -- they just are being a bit wiser about "catching students" (or rather not doing so).