I wouldn't say it's almost pointless because I'm pretty sure they do help a lot, but then again, no one should be basing their decisions if they should use a smart contract or not based on audits. Just like how having good engineers and architects make a building structure better, but not 100% earthquake proof.
It is pointless in my opinion because of high possibility of corruption. It is the nature of all centralized entities to have corruption and when it comes to a service that can have such a power on a market and values the chance of corruption is high.
Basically it is the same scam called "ICO reviewers" that we had in 2017. They get paid to promote a shittoken as a legitimate project worth investing in to.