It's hard to see what they misunderstood. The comment is about this thing being done by McDonald's rather than "something ... done by a massive corporation". The difference is in the specificity.
The point I get is not that "advertising from any large corporation is Bad" but instead that advertising from a corporation whose operations are Bad is Bad (because that specific corporation is Bad). It reads to me as an uncharitable take that OP is saying "making retro video games is Bad" (because large corporations are Bad) when I read "McDonald's being McDonald's is Bad" (because McDonald's is Bad).
The point I get is not that "advertising from any large corporation is Bad" but instead that advertising from a corporation whose operations are Bad is Bad (because that specific corporation is Bad). It reads to me as an uncharitable take that OP is saying "making retro video games is Bad" (because large corporations are Bad) when I read "McDonald's being McDonald's is Bad" (because McDonald's is Bad).
(where Bad = "not good or ethical")