Engineers know deeply the value of telemetric (observational) data, when building sophisticated prototype equipment or machinery it is well known that telemetric data takes precedence over any forecasting data produced by any theoretical model of the prototype equipment under consideration, these theoretical models must be fine-tuned/modified or replaced to match telemetric data, observational data is king in that sense, it overrides any preexisting idea about how the given prototype should have been functioning.
But today the accumulated and mounting observational data coming from active observers and even casual observers of UFOs/Anomalies points to a reality that is a lot more complex than the “simple” model imagined by the “nuts and bolts” very old and outdated vision of classic Ufology.
But Ufologists still resist to modify their model of reality. Ufologists it seems do not follow the proven approach used by engineers of modifying their models of reality when the observational data contradict or do not match exactly the model predictions.
Ufologists have an “easier” solution: if the observational data do not match their model of reality then discard/ignore/belittle that data.
Scientists know that reality is like a very complex machinery that always is in prototype state, that is why scientists like engineers have to modify their models of reality continuously and the reason why no model of reality will ever be “final”. That is why Science when done properly is in constant flux, old ideas always are being replaced by new ones that consider the new evidence not taken in count by the old theories/ideas.
The logical conclusion is that Ufologists would had been very bad engineers.