DeBrincat is an undersized Winger with a $9M Qualifying Offer who for his career has scored fully 1/3 of his Points (Goals and Assists) on the PowerPlay. He feasted as the best scoring option on a bottom-feeding Hawks team and already took a production hit on a better team in OTT. What do you think happens to his production on a PowerPlay with a focus on set-ups to his off-wing where one of the highest Volume-Shooters and most effective PP Goal Scorer of his generation just so happens to reside? It plummets is what. DeBrincat is the wrong player.
Wilson was precisely so effective in a scoring role this season because he could bury rebounds in the crease off Ovi shots (ala Knuble). I have zero faith DeBrincat can perform that role.
They wouldn't be adding DeBrincat simply to sign his QO. They would add him and sign him to a longer term contract, at a more reasonable AAV. Qualify then negotiate a 5-8 year deal.
You know who DeBrincat's center was on that Hawks team? Dylan Strome. You know who centered DeBrincat for two years in Erie before that? Dylan Strome. You know who plays for the Capitals now? Dylan Strome. It's a pairing that has synergy and chemistry dating back to nearly 10 years ago at this point. They worked together well in the OHL and they work together well in the NHL.
I give approximately zero shits if a player is "undersized" if they are able to produce results in the NHL, and DeBrincat produces results in the NHL unquestionably. We don't know what the Caps powerplay will look like next year at this point (with Forsythe finally gone and with hopefully significant roster changes underway), but I would be stunned if any halfway decent PP coach couldn't integrate a player the caliber of DeBrincat into the Capitals powerplay. Even in their previous formation, his quick snapshot and ability to find soft ice would do well in the slot role. And even in that season in Ottawa, he would still have been second on the Capitals in total goals and total points (third in the EV versions of both).
There's tons of other complimentary player options out there, and already on the Capitals, for playing opposite of Ovechkin. They don't need to commit the millions and term it will take to keep Wilson in order to find Ovechkin a third wheel on his line. What the Capitals need is more players capable of creating their own offense, capable of being the catalysts for their own lines. DeBrincat is one of those types of players.