Yeah that doesn't sound fun at all with the size of games these days.
If you were reviewing Mega Man 2 that could be done in a day and you could spend some time on the review and getting your pictures together.
Now with these kinds of games being many dozens of hours minimum that seems like so much work. And most reviews are videos so in addition you have to capture footage and then get in front of a camera.
That makes the backlash against reviews that don't line up with people's preconceived notions and console wars even shittier (and thats pretty shitty on its own).
God, yeah, games these days clocking 40 to 60 hours for base content is a crazy large task. And it's exactly like you say, video content is also a factor, so you have to do two versions of the content (at best/most efficient, you're stripping down your written piece into a digestible, shorter video one, which is still a decent amount of work when you factor in editing, asset sourcing - don't get me started on trying to get decent and timely b-roll footage from some places - structure, considering any keyword placement and other factors).
All for someone to start screaming that you're "wrong" and "biased".
Some big games were fun to review, others just made me sweat bullets, mostly for time-based reasons. And that was before social media. I've nothing but love and admiration for the peeps who do it these days.