I think it's touching the limit of what one can reasonably expect any intelligent thing to produce with the only direction being "produce an svg of a pelican riding a bicycle".
When you aren't sure if an LLM can write an svg well, or that it will be able to form a pelican shape, or animate a bicycle, it's a good test. After that, it's all judgement: how detailed should the pelican be? pelicans are the wrong shape for a bicycle by default, so how much can I change its physiology to match using a bicycle before it isn't a pelican? Do I care about how well the client is able to render complex geometry?
It's not that there isn't room to do better, or that it doesn't tell you anything at all, but rather we've reached a point where what it tells us isn't very clear anymore.
When you aren't sure if an LLM can write an svg well, or that it will be able to form a pelican shape, or animate a bicycle, it's a good test. After that, it's all judgement: how detailed should the pelican be? pelicans are the wrong shape for a bicycle by default, so how much can I change its physiology to match using a bicycle before it isn't a pelican? Do I care about how well the client is able to render complex geometry?
It's not that there isn't room to do better, or that it doesn't tell you anything at all, but rather we've reached a point where what it tells us isn't very clear anymore.