Players do not care about willow grading, state players may, but obviously don't get the best performing willow as it is rarely grade 1 for Pro's.
Clefts are weighed and the lowest weight 1% will be reserved for the Pro's in big companies, 10K bats a year, that's 100 clefts, of them 10+ will crack when pressed as they are so low in density so not many true Pro clefts abound. I've seen a 20+ all sapwood grain bat used by Sachin and it is so rare to find a top Pro with one, the lesser Pro's may have these grains but not with the low density and that is the key, having both is an incredible ask for a willow merchant.
Should this bother you? no, as how many people would want a bat that will start breaking quickly and need constant care in it's short life, and what will the power increase be? 10-15% over a standard bat only, and the price would be well over the £300 if you could buy one. All in all you are best served by getting a well pressed bat as the first tick on your sheet, it will make all the difference.