Python is ofcourse exaggerating but you can't argue with the fact that it would be a big blow for us if Hazard left.
I think some people don't realize just how dependent we are on him in terms of creating chances.
We've struggled to create chances (from open play) this season. Hazard poor form is one of the reasons, if not the main reason why.
Now ofcourse the club is bigger then 1 player and no we won't be completely average if Hazard were to leave but i think we'd be much better off if we could keep Hazard.
About your last sentence, it's your opinion and you are ofcourse entitled to having one but i feel like it's a bit premature to say that.
Zola was 30 when he came to Chelsea and 36-37 when he left. Hazard is 24. He still has a lot of football left to play. (and i'd prefer if he did it at Chelsea)