This specific thing has been seen in practice, it was fairly regular occurrence back when I contributed to OSM and a source of lots of similar complaints as this article at the time. In fact, often the argument was framed as automated vs human editors as some non-corporate large-scale data imports had gone badly wrong too.

Even at that time though, it seemed like the corporate support was, on balance, a positive thing. The main worry at that time (for me anyway) was some corp getting smart and pitching themselves as a middleman for other big corps. Luckily the contenders all got slurped up by big corps in a feast of mutually assured destruction, and since no one could trust their future to be built on a competitor's playground, they seem to have all defaulted to OSM.

Similar to Linux, having a diverse set of medium sized corps on your team (and maybe a few really big ones that see you as a complement, not a competitor) seems to be a winning strategy.