Ex-Asana here. Asana has written about the lack of leveled titles in the past[0]. I believe the use of titles is a separate issue to pay transparency. At around the same time, there was an effort to improve the transparency in pay bands. I have since left (for unrelated reasons), and so I cannot definitively speak to whether that was successful.
[0] https://blog.asana.com/2017/03/job-titles-asana/