They changed these things, slay. I think there was controversy over the OLLLDDD "NPCs now can finish spellcasts even without LoS" change. The more recent "NPCs can finish spellcasts even if you have gated all the way across the zone" (just a bit bitter that I died to a nuke that finished after I was literally on the other side of the zone from gating yesterday
[You must be logged in to view images. Log in or Register.]) change was put in with the last patch kind of out of the blue I think.
If you want these things undone, your best bet is to find classic-era comments about them and posting them in the bugs forum. That doesn't seem like it will change these things though.