You couldn't refuse both, you could refuse one or the other, either it is a troop type and only kandorak works, or its not and kandorak doesn't work but ryze does. You would resort to actively cheating because he was following what the rules stated and not what you think the interpretation should be. And honestly it doesn't make a huge difference, instead of a full unit they get a single model that can't start inside a unit. in all but the most tailored lists lore of undeath is still sub par to other lore choices.
There is no reason to attack T.O.'s that don't agree with you, your interpretation isn't the rules it is your opinion, and the rolling on ryze has little effect on how fair tournaments are. In my region there is no comp, and if tournaments make rulings they tend to follow RAW to avoid these kind of arguments over what the rules to our do not mean.
You have your RAI interpretation of the rules and that's fine, but your view isn't the only one, this topic has been discussed ad nauseum, and as stated above and linked to. The community wide consensus is that RAW it is legal, RAI it's not. There is nothing you can add at this point that hasn't been said. If you don't like raw don't attend the tournament using it that way but don't make claims about T.O's being unable to make a fair tournament because they don't use your interpretation of the rules. They put in a lot of effort and in some cases their own money to set up these tournaments, so show some respect for all the work they do and don't just bad mouth them for no reason.