But I think you need to mention by default telegram is 4 out of 7, by default whatsapp is 6 out of 7 if you want to compare that kind of thing.
Most people are not going to use the secret chat.
Most people are not going to use the secret chat.
Most people don't care about secret chat. This is for people who care. Granted, they don't have secret chat on Desktop which makes the whole app useless in general unless you only use phones for communication.
This is a reason i said "It's ok" in my original comment. Few people need encryption in day to day communication, but if you need it telegram is better.