I realize the mini (only in Edmonton, etc.) kerfuffle in the media about Puljujärvi's temporarily skating with #98 on his back was just a funny excuse for Internet-warriors to get up in arms bitching about the media being out-of-date sourpusses (hence, this thread), but...
It would indeed be really stupid if Puljujärvi wore #98. Why? There are two rather elephantine reasons that cannot be ignored:
1) The Oilers' franchise's deity is Gretzky #99, and its soon-to-be second franchise deity is McDavid #97 (I would currently still have Connor behind Messier and Kurri, but ahead of every other Oiler ever, and after another year or so he surpasses Kurri anyway despite having won nothing yet. And then he's going for Messier.). Thus, if Puljujärvi wears 98, his number is sandwiched between the two biggest deities in (future) franchise history, which is a highly visible thing that looks really out of place, especially considering he still hasn't established an NHL career, whereas #97 and #99 are two of the most elite hockey players in the history of the sport.
2) If and when the Oilers make the Cup Finals again (let's hope for this year), the player introductions are a big thing. Do we really want to see the Oilers coast-to-coast on Hockey Night in Canada, on ESPN (or whatever low-balling US network the NHL can dupe into broadcasting games for it), and on international sports channels around the world, and have Puljujärvi be the final player introduced... after McDavid? That would be cringe-worthy. (It even looked bad in Pittsburgh when young Jagr -- one of the greatest players of all time, himself -- wore #68, and was thus a higher number than Mario. When the players were introduced in the Finals, they called #68 before #66 just to let Mario be the [legitimate] final player and team icon.... which screwed up the number chronology and looked dumb.)
Point being, although it's fun to bitch about this as a much-ado-about-nothing from some old guys waving at clouds in the sky, the old guys who pointed out that this was a bad move... were 100% correct.