Agreed. For me wheat in any form is exceptionally spike-inducing, even wheat bran. I can do some wholemeal bread in the evening with the meal as long as there aren't many other carbs in it.
Some people may be able to get away with lower GI forms of starch, I can do oatcakes even at breakfast and ryebread during the day, in sufficiently small quantities, and despite the GI tables quinoa hardly affects my BG whereas brown white and basmati rice all come in about the same.
To some extent that's down to your particular pancreatic output, mine doesn't produce Phase 1 insulin but my Phase 2 is still pretty good so as long as I don't overdo the quantities I can get away with even pizza - the fat slows down the glycemic response.
About the only genuine benefits of eating grains are beta-glucans, plus a certain amount of fibre with unprocessed grains. You can gain far more nutritional benefits from dumping them in favour of larger quantities of more nutritious things.