No, it sounds like they are telling you that there may be more issues that just replacing the chain won't fix.

Many time a worn component when replaced will not work correctly with the other components as they have wear too. Not always, but I'd say it's often enough that it should always be taken into account.

So replacing the chain may likely be all you need, but if the particular reason the chain broke was also wearing the chain wheels on the front or sprockets on back, then they will need changing too and that means more money.