Earlier quoted context omitted.
The parent didn't display any rigidity of thinking, they simply criticized your inaccurate characterization of engineering work... a point which your non sequitur reply does not address.
> By comparison... is the operative phrase. Your fallacy is conflating engineering work and an individual engineer's scope on said work. Projects can fail, engineering teams can face delays - all common things. But an individual engineer is very unlikely to lose his/her job over it, in contrast to a sales person missing on his/her quarterly number repeatedly.
Are engineers less likely to be held accountable for missing goals due to external factors? That depends on the organization, but that's an entirely different claim.