Idk, Stone always felt like an underappreciated player as a Sen. He is one of those guys that could elevate the games of anyone who played with him. Smith nd Pageau owe him a fair bit of credit for their current contracts.
I also think Stone getting traded at the deadline hurt his standing in terms of hart votes; he took some time to find his chemistry on VGK; had he maintained his pace with Ottawa after the trade instead of taking some time to learn a new system and develop chemistry, you have a guy pacing just shy of 40 goals and ~87 pts all while being a Selke nominated winger. Hart is always going to be won by the guys who put up gaudy pts, but how big of a gap in impact is there really between what Stone was doing for Ottawa and what Gaudreau did (who finished 4th in hart)?
I think Batherson has a long way to go before we can even consider him to be a Stone replacement. Imo, the guy we draft this year will be the one, that or perhaps Tkachuk. Batherson seems like a good stylistic comparison, but it's unfair to put the burden of replacing Stone on him...
Having a different opinion on how to determine MVP isn't in itself flawed. I'd argue the current what it is typically framed often overvalues offense and undervalues everything else. In particular, MVP often ignore the impact you have on the line mates and focuses too narrowly on the individuals performance. Stone is up there with Karlsson, Alfredsson and Spezza in terms of making the players around him better. He`s a very special player imo, which is why I think this year's draft will be paramount in replacing his impact.