I don't disagree in theory, but "it takes two to tango", as they say (never was able to pinpoint who "they" are though).
From players like MG and Og's perspective, they may not even be interested in talking extension at this point, unless it is a great offer.
If they are betting on themselves to have great seasons, they stand to substantially increase their open market value.
I realize most of us are far more invested in what's good for the team, than the individual, but not getting a deal done early isn't necessarily always within the team's control.
You can't really blame the player either. It's a business.