Nonsense. It's exactly the type of risk the Flames have to be taking. Boggles the mind how many fans cling to the mediocrity the franchise has enwrapped itself in. Calgary's only chance at Eichel is because he's injured. If he was healthy, the price would be Lindholm++ which would make the whole thing pointless.
None of the speculated pieces the Flames would have to give up are crippling by any means. The 1st, Dube/Valimaki and one of Zary/Pelletier/Coronato is definitely a hefty package of futures but hardly that much more than what Treliving threw away to get Hamonic.
If Eichel returns to form, the Flames finally have a chance at becoming a legit contender. If he doesn't, they'll be forced to enter a rebuild and can recoup some assets by trading away Gaudreau, Tkachuk, and even Eichel.