You are conflating a couple of different things here
There actually is such a thing as verified bots on Cloudflare that gets through most blocks (and these services are likely are part of that), but ultimately it just depends on how the website owner has things set up in Cloudflare
I hate to be rude but once again I am begging people to actually read the post. It is mentioned in the second paragraph that they are all verified bots.
> There actually is such a thing as verified bots on Cloudflare that gets through most blocks
Verified bot is just a label. What you do with that information is entirely up to you as the operator. It doesn't say anything anything about the service and doesn't provide any guarantees about the traffic.