They cooperated to some degree, but I'll go out on a limb to say that the authorities wanted Telegram to be fully subservient to western government interests.
15 years ago in the US this would have been uncontroversial
Personally I'm undecided about whether these channels should be publicly available on e.g. free TV channels, but that's getting off topic.
there are other low-hanging fruit EU governments could do to address crime, NL has basically become a narcostate and they are just sitting by and watching - Telegram is not the problem.
Empirically speaking, governments have had absolutely zero success at this, but their attempts to do so have gotten them the kind of legal power over your life that organised crime could only dream about.
You could certainly argue that RICO was too powerful and is often misapplied, but I've never before seen anyone argue that it has been ineffective.