That's kind of bad, but I think that for regular users, it's a non-feature. They don't care. They only care about traffic not being snooped in along the way. They will trust the messenger company.
I'd imagine JioChat is encrypted in transit, isn't it?
The reason e2ee is necessary in india is people share all things online. Especially in chat. Passports, certificates, health related stuff. We are very open online.
e2ee in JioChat was just not even implemented. They just copied whatsapp.