Typhoon most certainly was designed with dogfighting in mind and the only machine with a clear advantage over it is F-22. The notorious occasion where the Indians swept the board clean with Su-27 was down to poor exercise planning leaving the Typhoons encumbered by role equipment without the kit to remove it to face their completely clean opponents!
The risk of declaring that GCAP won't need WVR capability is that timid politicians or senior military impose restrictive ROE requiring visual ID. Hopefully the sensor suite will be good enough to argue the opposite case.