more likely driven by their sales team (which also influences marketing), sales people love to overpromise because most of their job is done after the sale - often the idea is that they’ll sell enough to warrant building it
When I was younger and worried about how we were going to execute on some project a veteran (ex-DEC) salesperson had sold, he pulled me aside and laid some gnomic-to-a-young-engineer sales wisdom on me…
“Look, never confuse the sales cycle with the install cycle…”
