Oh, they absolutely will have guys cross-checking him, it's just having only one regional guy means that they probably have to use them to scout him somewhat. He's also been at major events, which means NA scouts have absolutely cross checked him. My guess is they listen to what the Andersson's say, but will disregard it if it is completely out of whack. Probably take them out of the room if they are having discussions about his personality make-up and if they interview him at the combine.Both teams will almost certainly have assigned their other European scouts to assess Lias.
On the whole I'm split on whether the familiar connection makes those teams more or less likely to draft Lias and I'm not sure if Lias would even want to be drafted by them. The main reason why he went to HV71 was that he wanted to break through and be judged on his own merits and not just be Niklas' son and Mikael's nephew like he would have been at Frölunda.
In the end, I don't think it makes much of a difference, if anything, I'd side with less likely. I know with lower-end prospects some scouts tell their teams to straight up take their kids off the boards. I don't think that is an option high-up in the draft though, you can't just ignore a first round prospect because of who you employ.