Synth music style invented around 30 years ago on technology that didn’t exist a generation ago: "This sounds old-fashioned, the developers need to evolve."
Orchestral music played on instruments that have existed for thousands of years, in a style that’s existed for hundreds: “Finally, a modern sounding ost!” 
I’m not saying an individual piece can’t be repetitive or stale or just plain crap. that’s a composer critique. I was making a response to the genre.
also, when done effective, full orchestras can be crazy evocative, which might be why the lazy/uncreative default to it when they think “big”. they have a memory of “big feelings music” and it probably was an orchestra. sort of like someone not knowing what to paint or what they are trying to communicate, but sourcing only the most expensive pigments and putting effort into having the widest possible palette without considering that a narrower range can work even better.
in theory you can use an orchestra in any setting or time, but connecting to a place or moment requires some cultural literacy that probably a lot of game designers didn’t go to school for or recognize the value of.
that’s why I imagine they jump to the do it all, one size fits all epic orchestra composer, instead of hiring like Daniel Lanois or whatever.
I think I mostly agree with you there.
I suppose I just miss when mainstream entertainment had more variety and less pursuit of BWAAAAAAAAAM-adjacent dopamine button pressing.