I think you slightly overestimated your team at the time, trying to win 3 games in a week by mixing it up
It was more of a last roll of the dice on the season than overestimation. Win those two league games and I only had 3 losses at that point and had the option of adding another player to try and win the league. Those two league losses and the cup semi-final defeat meant I punted the rest of the season in terms of trying to win any silverware.
And yeah, tanking's not cool since the process blew up in Hinkie's face ;-) However, obtaining the optimum draft position when your playoff hopes are gone is a well-established strategy any sensible GM would adopt.