Increase fuel economy -> Introduce fuel economy standards -> Economic cars practically phased out in favour of guzzling "trucks" that are exempt from fuel economy standards -> Worse fuel economy.
or
Protect the children -> Criminalize activites that might in any way cause an increase in risk to children -> Best to just keep them indoors playing with electronic gadgets -> Increased rates of obesity/depression etc -> Children worse off.
As the article itself says: Hold big tech accountable -> Introduce rules so hard to comply with that only big tech will be able to comply -> Big tech goes on, but indie tech forced offline.
These are not unintended consequences. All media legislation of late has been to eliminate all but the companies that are largest and closest to government. Clegg works at Facebook now, they'd all be happy to keep government offices on the premises to ensure compliance; they'd even pay for them.
Western governments are encouraging monopolies in media (through legal pressure) in order to suppress speech through the voluntary cooperation of the companies who don't want to be destroyed. Those companies are not only threatened with the stick, but are given the carrots of becoming government contractors. There's a revolving door between their c-suites and government agencies. Their kids go to the same schools and sleep with each other.