If it fails, it will be because they gave up. A fantasy hockey site cannot rely on ads, and they admit themselves that this is the second/third job. Moonlighting. So how long can passion keep things going? Three years? I'll tell you right now that ads aren't even getting them $5000 a year, judging by their traffic.
Anyway, do people really go there for line combos? Why? Go to the frozen pool section here and click "last game line combos" or "last three game line combos" and with one click you can see any team, ACTUAL data, of the four most used lines. I haven't seen how DFO does it, but why would I when frozen pool has it nailed.