Hi Firstblood,
Decentralized messenging is a part of what status has to offer. status itself can be more compared with an OS system for Ethereum. You run run all sorts of Ethereum dapps on it and messenging is a curcial part in order to create a community. The real value of Status is the OS system for Ethereum as a whole... simple, effective and ready for mass adoption. So yes... Telegram can come with a decentralized messenging app but they don't have a system that connects everything yet. So don't be afraid.. Status is a great product which will blow your mind!
Regards,
Migson