It’s not that it will prevent you from learning the sounds themselves, it’s that it will take you longer to learn to read Arabic text that you’ve never encounte

It’s not that it will prevent you from learning the sounds themselves, it’s that it will take you longer to learn to read Arabic text that you’ve never encountered before. Part of what makes language learning difficult is the perceived lack of progress. The only way to overcome this is to ensure that your learning is as efficient as possible. That means using as few “intermediate representations” as possible — they take time to learn and, even worse, they take time to unlearn.