I think that's reasonable regarding expectations, but the flip side is you can't make a vegan patty and call it 'vegan burger like patty'.
The discussed regulation smells heavily of measures to protect the meat industry rather than the consumer who is absolutely able to discern between the classic and vegetarian alternatives.
Why not? Consumers are more likely to give vegetarian products a chance when they are 'drop in' replacements. A 'vegetarian burger' instead of a 'burger' would sell better than a 'plant based patty'.