It really doesn't matter that the model will probably not perform well on another dataset, as it was built for a specific task. It's also about flexibility: If

It really doesn't matter that the model will probably not perform well on another dataset, as it was built for a specific task. It's also about flexibility: If Google ML doesn't provide you with a way to train their algorithms specifically for your use case it won't help you that they work well for generic text recognition tasks.