Well yeah... about 20 or 30 years ago, depending on which iteration you're talking about.
It is easily observable and provable fact that every level of retail toys has changed significantly since then, and it borders on willful ignorance to claim that the the marketing and distribution of decades past somehow applies to today's market.
Just as it requires actual willful ignorance to ignore hugely successful lines where most of the items are much more similar than the Dinobots, such as Pixar's Cars, Thomas and Friends or virtually *all* girls lines. Heck, Power Rangers differentiates itself on nothing more than colour.
All of those having significant, wildly popular, and global media exposure to drive home the idea that the similar/repainted versions are unique. Dinobots do not currently have that benefit.
Additionally, and as I noted before, customers are practically trained to see repainted cars as unique--that's most of the diecast aisle. It also fits right into the Transformers design/repaint philosophy in a way that a bunch of dinosaurs do not. The girls' lines are similar, in that customers are trained to see various Barbies (for example) that are merely outfitted in different ways as individuals.
The idea that you couldn't release Dinobots in mixed colour schemes G2 style and then over time get out G1 coloured repaints is silly.
The suggestion was brought up, discussed, and I don't believe anyone even attempted to counter it.
Not that ANYTHING you said has a single thing to do with one word I that I said.