Why even suggest it if you don't think it a good idea, we have no control over who are reading this forum might do or their experience level.
Those with the VM setup and sandbox, etc. etc. are most likely not to need a pointer in that direction.
No offence but the OP asked why they were blocked, that was explained.
I pointed out that it was possible to bypass the security for those particular sites if they wanted to.
I could have just have easily said turn off the Web Shield, but I did not? Why? Because that would be a ridiculous idea.
Why suggest what I did? Because the OP may find it useful and as they
had already determined that the sites did not contain an active threat.
It's obviously not a good idea to go round unblocking sites that are determined to be malicious in general - that goes without saying - so there's no need to do so.
If you disagree that's fine - lets just leave it at that.