Its been like this on c2 at least for the last 2 years+ at least because I made some logic Events around that and it made sense to me if something its Solid line of sight cannot go thru as its solid like a rock you cannot pass a laser or things like that.
But at the same time is not like it has to be like that if they tell me that it works the opposite then it's fine for me also, I'm used to a lot by design things so one more doesn't make any difference, I just need to change events, the thing is that has been changed and didn't see any notes or something like that, or the bug has been forever there on C2 and no one reported.
In any case, if its a bug I will open a bug if it's not then it's all good.