This sounds like a technician who is not very well trained or experienced with the test equipment. Would a similarly untrained technician be able to get results quicker with an analog scope?
That is an interesting question, and I don't think easy to find out the answer.
That is because new starters in electronics will usually not be exposed to old tech.
I read the aircraft pilots forums where all the present incidents/accidents are discussed.
One of the near disasters was the Qantas flight out of Singapore where an oil pipe in engine broke,
in an early model A380. nearly leading to disaster.
On the flight deck were extra pilots, trained in the management systems.
However they, even collectively, could not identify key issues, and were searching ( I call "pecking" ) through menus and following procedures,
until fortunately, the aircraft landed safely under manual control.
I may have it a bit wrong, but the official findings are interesting.
We also have stay focussed on the fact that high value engineered stuff stays current for 25 years or more.
That is aircraft, military, space, large industrial , electric power etc.
My opinion is that the underlying tech on the present range of ordinary DSO is following best practice, but the HMI, ergonomics, "intuitiveness" is poor.