However, the fact that there is a problem, does not legitimize doing something regardless of what the something is.

I haven't seen any support for the articles which actually shows the effects of the policy will be good, rather than arguments saying "it's meant to be good". Which is a fallacy that affects many politics which later end up having adverse effects.

But ultimately bureaucrats are happy whenever there is an excuse to increase bureaucratic power.

Edit: spelling

Further edit:

For the particular point you're putting out, to justify the EU policy you have to at least show that 1) those media outlets would receive all that traffic that those FB posts generated if the FB posts didn't exist in the first place, 2) that this outweighs costs from abusing that policy (claims over fair use, e.g. youtube copyright system) and content that simply will not get reshared, even if fair use and linking to the source material, out of fear of triggering the safeguards mechanism