They may have been picked ok, but the shippers, or store, may have refrigerated them to extend their shelf life. the problem is they do not ripen correctly.
the distributor will buy the whole orchards production, and they are usually picked in only 1 or 2 passes, the problem they may not be able to sell the whole bunch, so they refrigerate part of them. in none organic orchards, they may use chemical to retard ripening, but if organic, they will use refrigeration.
With Keitts, there was probably no need to try and extend their shelf life, as they can hold up about 3 weeks just fine.