Of course it’s an issue, but it’s not as big of a problem because non standard transactions don’t propagate as well so you would have to collude with a miner to include such data on the chain.
What we can do is NOT change standardness rules so it’s harder not easier to put this content on the chain.
Your argument is to not only get rid of locks and fences because they don’t work 100% of the time, but to make it easier for future robbers to break into people’s homes.
And you’re yet to articulate why anyone should support this change. It’s quite telling you’re so determined to defend this contentious change without explaining why it’s a net positive.