Just the fact that pornography is being taken seriously as something that's dangerous for minors is a good thing really.
But is pornography dangerous for minors? Has it been researched? What "dangers" are there? Do these apply to all age groups of "minors"?
The Left has been increasingly concerned about the abusive acts becoming common in pornography and the seemingly pervasive use of underage or barely-of-age women with consent extremely sketchy or not present at all.
The Right has been increasingly concerned about how the pervasive presence of pornography encourages people to focus on that for their needs rather than pursuing real-life relationships and obsess over extreme acts that very few real partners are actually willing to do.
This is all exacerbated by internet startup tendencies, where maximizing "engagement" at all costs is the priority. It's in their incentives to maximize most of the bad effects that everyone is concerned about.
It's not clear exactly how bad everything is or that this particular thing is the right way to address it. But clearly enough people are concerned about it and aren't willing to accept endless delaying tactics around insisting that you can't do any particular thing about it because it can't be proved to be perfect.