I have trouble understanding the problem with the brocha.
Let’s take an analogy:
The brocha on celery is ha’adamah. Now, if I make tuna salad, in addition to the tuna I might put in celery, pickles, onions, mayonnaise, garlic, maybe a few other things. When you are at my home for a meal, I would offer you some “tuna.” I wouldn’t say, “Would you like some tuna with celery, mayonnaise, etc.?”
So, if I offer you something called “rice,” why isn’t the brocha what one would make on rice? Is it because I say “rice” in Japanese instead of English? Does that really make a difference?