Absolutely unacceptable. The top of that oven is almost 6' off the floor! I typically place the bottom oven no more than 18" off the floor (Wolf lists 17" as "typical") but lower if the client is shorter. Yours is 24" off the floor. Dangerous, as others have noted. Go to the appliance store if your oven is on display and find what is most comfortable to you. The cabinet above the double oven is often where I will place vertical tray dividers, so the lower the cabinet, the easier it is to access your trays and baking sheets too.