The track at The Oval is decidedly British and is not, as far as I can ever remember, conducive to spinners at both ends in the first session of the first innings of a test match. At least not for English spinners (have we ever had two decent spinners at the same time?)
It certainly didn't appear to be today either.
We have produced decent pairs of spinners but tend not to pick them at the same time
We have produced decent pairs of spinners but tend not to pick them at the same time
Panesar/Swann
Edmonds/Emburey
But your point about the pitch is accurate.