Oracle is a law firm that has an engineering department attached, and they specialize in proctology.
Had a colleague that interned at Oracle and was proud of how he learned to make better Powerpoint slidesets there.
His tips included "Always make slide headings full sentences including full stops". He would rename a slide titled "System architecture overview" to "The system architecture is distributed in four microservices.". (This would be above the chart showing the actual architecture)
Turns out Oracle execs famously print out slidesets, don't read them, but do read the headings, so this was what he had to do to ..."succeed".
I'd take the oil companies suggestions to heart, not Oracle's.
I believe this is the point of the strategy. Imagine the presenter is hired in as a consultant, but the audience are the ones footing the bill without any knowledge of the actual work, timeline, etc. involved.
All they want is a white dude in a shirt, tie and suit to talk a lot and sound smart. The easier it is to convince the audience of that, the more suitable to purpose the presentation is.
I did my PhD at Oracle. We got several top-tier papers from the work we did. There’s excellent engineering at Oracle.
I based my half-joking statement on knowing exactly one colleague who worked at Oracle who couldn't program his way out of a wet paper bag, but could give you a 2-hour presentation with encompassing 80 slides on how many consultants you should hire to investigate the role of paper bags in your company.
(I'm only pointing out that absurdity, I agree that there is a lot of flexibility to make slides appeal to different audiences)
ooof