Yes, you can skip the water roux but you must add the bread flour and water quantities specified for the water roux to the bread flour and water quantities specified for the main dough. So, the main dough should have a total of 400 grams of bread flour (25 grams + 375 grams) and 200 grams of water (125 grams + 75 grams). Proceed with the steps to make the main dough as written in the recipe card.