I kinda get it to be honest. Condon saved our season and played fairly well although you could see he had a hard time keeping up with the workload at the end. Nowadays when goalies play well, even for short periods of time, they get longer term contracts by teams desperate for goaltending (See Darling, Talbot, Dubnyk, Lack, Hutton and etc). Had we not given Condon a deal he would've gotten one somewhere else and when considering Anderson is often injured and streaky it was a calculated risk.
I get that it now seemingly turned out bad and we can say it was a bad decision but back then the point was to see Anderson and Condon split games nearly 50/50 so his contract considering that wasn't that bad. It's a lot of money for a backup but Condon was counted on to be a 1B type of guy more than a backup.