Unless you already knew the people involved or we have some third party sources, we are basically just believing the side that only has 1 goal; showing how guilty the people they prosecute are. How could that mean anything else but assuming guilt?
(And honestly I think that personal feelings towards a person are very often good enough to make a personal judgment on guilt, but we don't even have that here! I'd bet most of us never heard of them before today)
What is wrong is for media organizations (which can be as small as independent reporters) to break expected traditions w/o acknowledging it. It suggests that this case is different (and again, it might be different) implicitly, which isn't ethical. You should either work within the prevailing assumptions of the system, or explicitly defy them in a principled maner.