Considering how popular BF2 still is, I'm not sure there's actual need for a console version. That said, it won't hurt the sales (and profit). It will "only" hurt the quality.
I was never a fan of BF2's but I've enjoyed the demos of both Bad Companies. Still, I feel they could have been much better on PC if they just were real PC games. It's pretty hard to bring the console versions close enough to the PC version and if that's not possible, it's unfortunate how often the PC version will get nerfed instead so that "every version is equally good". Console gamers clearly enjoy their slightly simplified version, which no doubt is still good, but PC gamers want more since they know it's possible.
Just saying that console version are usually good but the PC version should be even better.
