It does make sense at some point to put our 1st rd pick into play.
But this is probably the worst season to do so:
1) we're a couple years away from serious contention, #12-14 could be in the NHL by 2020-21, definitely 2021-22
2) ED coming up, exempt prospects have more value right now relative to trading for a player you have to protect
3) We need to see what we have in our kids before making the "big trade."
The summer of 2020, with a pick in the early 20s, and the ED, will be a good time to use that 1st rd pick as trade bait, once you pick out of the top 20, it's more likely you'll wait 3 years for that player, he's less likely to be a top 6/top 4, and the Flyers will be loaded with young NHL talent, so they can turn around and trade prospects for future picks to keep the pipeline filled down the road.