Then who are you talking about when you say people are bashing him? Most of the people just don't find the inconditional admiration for Eller justified.
Do a little bit a research on this board, you will find a lot of proposition for Eller with Plek.
His only place on the 2 lines, if any, is at the wing. DD and Pac have proven to be a solid duo, and DD his a superior playmaker than Eller. There is no way Eller is gonna take the place of Pleky or DD.
Unconditional? Give your head a shake. Many have admitted that this was one of Eller's worst games this year. There are people calling this kid a 4th liner. That is irrational hate for a player who has irrefutably proven to be much more than just a 4th line checker.
As for doing research on this board, I probably read more posts here than anyone else. Unless there are a few outliers that slipped by me, I don't think there have been many claiming that Eller should play with pleks. And he shouldn't, for the reasons Et le But and myself just detailed. So do your own research.
And nobody has suggested that Eller should replace Pleks. So again, research. As for replacing DD, many arguments can be made for trying Eller in place of DD. Playmaking is of course an area where DD has Eller beat. DD also has Pleks beat in that department. It doesn't mean that DD is better than pleks. Because he isn't, far from it. As for point production, as of 2 games ago (the stats site I uses hasn't updated since then, yet, it'll be tighter now) Eller was ahead of DD in terms of 5v5 p/60 production and 5v4 p/60 production. And as for Maxpac and DD being a great duo, of course they are. Maxpac has produced with everyone he's played with. He's produced more with Pleks, in fact. Eller already has his faceoff % above DD, so at the very best you could argue that DD is on par. On the whole, Eller is a better defensive player, this is indisputable.
Now, you'll probably try and twist this into me saying that Eller is a slam dunk 2nd line center and should replace DD ASAP. I'm not. I'm saying that the argument can easily be made that Eller deserves that chance, because the Canadiens organisation will be the one to profit most out of properly evaluating it's talent.