Of course. The Czechs are better than us right now and deserved to win the group. It would have been nice to win it, but it's progress when people complain we missed out in playing with the elite teams rather than complaining about struggling against San Marino.
We know what is needed now to qualify from our World Cup group, so the rest is up to the players.
A decent balance of "fantastic, we are in the Euros!" and "we still have work to do to improve".