To me, it's not rooting for a tank. Rooting for the tank is rooting for them to lose, which I was openly a part of the past two seasons. They didn't really tank either necessarily. They sold off a bunch of assets who at best could get them 7th place in the east (Vanek, Roy, Miller, Pominville, etc). They performed poorly, and that performance rewarded them with some early picks (Grigorenko, Reinhart, Eichel). What they've basically done is taken the rewards from the trades of the old core (Vanek trade, Miller trade, Pominville, Myers trade) and exchanged that for a new supporting cast of veterans (O'Reilly, Bogosian, Kane, Lehner). They're younger, cheaper and arguably better than the old group.
That being said, I'm rooting for wins, but not expecting them, and won't be upset if they don't come. I expect this team to be a bottom 5 team, especially if they do nothing at goalie. And if they are able to draft either Matthews, Chychrun, or Puljujarvi, that's fine by me.
While it's disappointing to see the injuries to Kane, Bogosian and Lehner (and the fact that all of these guys may be developing a bit of an "injury prone" label"), I'm actually kind of excited to see Eichel and Reinhart without Kane in the lineup for a while. He and Reinhart can grow their games. Kane on the ice does take quite a bit of the onus on puck control, shooting, etc.
But to me the club is on the right track...
A franchise player (Eichel)
A clear #2 center, also a potential elite player (Reinhart)
A do it all center/winger who can play any spot (O'Reilly)
An elite scorer (Kane)
Top 9 filler (Girgensons and Larsson)
A future top defenseman (Ristolainen)
A future top-4 pair (McCabe-Pysyk)
A 4th young, top-4 Dman (Bogosian)
A solid goalie prospect/starter (Lehner)
Now some of these are question marks, and there are some needs (another top pair defenseman, and possibly another threat on the wing for Eichel to develop with, I see Kane-Reinhart as a combo for Bylsma in the future), but these are the years to find out those answers and build that core. Not all of these guys will be here in 5 years when we're hopefully winning cups, but this is the time to find out.
It's not a tank, its the beginning of the upswing of the rebuild. It will have ebbs and flows, and the beginning has had its bits of both, but at least they're exciting, and with the Pegula's leading the way, at least we know they will make honest attempts to win, unlike some other regimes we've seen run Buffalo sporting franchises.