It is still not backdoor, sorry, you are completely mistaken. They came - tried to come - in the front door openly (the expression of back door means completely different, just look it up and you will see) to catch criminals, doing well known and prominent criminal activity, but the Telegram decided to protect the criminals instead. You can try to smear in whatever imaginative reasons behind when the reason are in the front of your face, like it or not, it does not matter if you like it or not! Also how much people like the Telegram because 'it is soo user friendly and pretty', not in pair with serious crimes committed and aided there, completely not!

Also it is still the investigative phase but the suspicion is warranted completely.

I seriously do not understand low moral people shielding those helping criminals, do you really not knowing what are you doing, seriously, just because there is a - misleadingly presented - popular service there? Really? Very worrying the moral state of social media user masses.