And didn't the state decide? I thought the state government voted on it and its' removal was passed. The Cruz ad stated that Trump wished the flag was changed and slammed him for saying that. Thus, Teddy indirectly supports the flag staying put. See the conflict.
The conflict is in your reasoning. Cruz dinged Trump for getting involved in a state issue, and choosing sides. There is no way to stretch that to mean Cruz supported keeping the flag, it’s just another cheap shot at Cruz based on nothing logical.