Guarantee that the Flyers wouldn't trade him for anything less than a mid 2nd, he's worth too much to us to settle for anything less. He's a former late 1st rnd pick that although he didn't reach his max peak when drafted, he's become a very solid bottom 6 forward who can play up in the lineup when necessary, is good defensively, is real good on the PK, is a very smart player, and always brings his best game every game and every shift. He may not be great or anything but he's very strong in the role he's asked to do and the team and coach depend on him. He's probably worth far more to Philly than what any team would be willing to pay to pry him away from us.
To be clear, he's what typical late 1st rnd picks become. You hope they become and impact player but often they just become a solid bottom 6 role player. A late 1st rnd pick in a typical draft often becomes just like Laughton. Nobody would trade a late 1st for him but keeping your late 1st you'd likely get a Laughton type player in 5 or 6 years.