I think you're overanalyzing to be honest. You can pen a million different speculations, but the numbers don't lie. The team bottomed out when he left where as Dallas went to a cup final his first year. Sure it wasn't all him, but if you don't think he was a major contributor to both our decline and their rise then that's your prerogative. Even this year the Stars were an overachieving team that got nothing out of Seguin, Benn and Radulov and yet they were still in contention for the final spot because of the line of Hintz, Robertson and, yes, Pavelski. Sure we don't keep Nyquist and Donkey, but we have considerably more flexibility with Pavelski and not EK65. We didn't need another offensive-only defenceman no matter how dazzling he can occasionally be. DW wanted the glitz and the glamour to keep up with Vegas. Pavelski was neither of those, but he was our leader and a perennial 35-40 goal scorer not to mention the only other player on this team that would have a greater than 50% FO win ratio. Even this year he scored more than DOUBLE what our leading PPG leader had. Last year was a down year but he still would have been the second leading scorer on the PP here. You can blame coaching all you want and I'm sure there's a crumb of truth there, but you don't have that much talent on your top unit and be that incompetent. I really think you're severely underestimating how much this team missed Pavelski the past two years.
Now obviously hindsight is 20/20 and it's easy for me to say this now, but I can unabashedly acknowledge that at the time of both the EK signings and subsequent loss of Pavs how much I hated it. I thought we'd get two years of solid play from Karlsson before the wheels started falling off and unfortunately we didn't even get that.