Basic soil does a better job of releasing nutrients.
Not true. A high ph will cause the phosphorous to bind to the soil. So yes you may have put too much! Why did you spread before you got the results? You take soil tests so you can add precisely the amount you need without wasting time and money.
My soil has a high amount of Ca and is 7.3 ph and I have to add a lot of P for clover and alfalfa.