Every deadline has its pace and style that evolves based on various factors unique to each season like the cap crunch, players available, team compositions, attribute that seems to be king that year (speed? toughness? leadership?)
This deadline clearly became about the sellers that are willing to make things palatable for the buyers (max retention, role player throw ins, willingness to take later picks or quantity instead of holding out for that one mega prospect) getting out ahead. Blues recognized this early on dealing Tarasenko for an "underwhelming" (but still very solid) return while Chicago was being prissy with Kane. They recognized that Tarasenko held a lot of the cards and they could end up flat on their face, and the way to approach the situation wasn't to play chicken trying to get an extra third round pick. They repeated with O'Reilly, helping the Leafs with 50 (75% w Minnesota's help) retention and adding Acciari, who may be worth a 3rd or 4th on his own but is completely fine thrown in as a sweetener. Washington saw the writing on the wall and packaged Orlov with Hathaway, on top of retaining on Orlov, ON TOP of taking Craig Smith back. All of that was probably worth an extra 2nd or 3rd on top of what they got from Boston but they're not crying about getting a 1st, 2nd and 3rd back. It was the cost of making the deal not just attractive to Boston but even possible to make for them from the cap perspective. Chicago did the same with McCabe, retaining him across a few playoff runs. And yeah, Nashville won the annual "young role player to Tampa for everything not nailed down" lottery but if anything that is the exception that proves the rule. Jeannot was still a young cost controlled player and they took back a quantity of picks years out since that's what Tampa could afford to give. Even Meier had picks and role player ish prospects the other way and did not get Nemec, Holtz or Mercer back, but the sharks still got an absolutely enormous haul that could be a game changer for them the way Karlsson haul was for Ottawa back in the day depending on how Zetterlund, Mukhamidulin and the 1st turn out.
I can see Arizona and Columbus ending up like New York the year they tried to hold out on Vanek and had to settle for Collberg and a 2nd (rofl) from Montreal at the last minute on deadline day. Just not in tune with the way the market is playing out while a lot of other teams are.