weather conditions can change in minutes
I've seen conditions change quickly...there is an old joke everywhere in the USA..if you don't like the weather, wait 15 minutes and it will change.
for a plane to come through 27 minutes later, same type, same place, means nothing. or at least, very little.
for the crew to raise the gear means they had time to try ''something'' to recover, but it didn't work.
Indeed, I think it is universal in aviation to NOT raise the gear until a positive rate of climb is observed.