To me, it's less of a lack of "research," but more of a lack of professionalism. If you can't even be bothered to properly spell your dogs' breed, then you could be the best breeder/dog owner in the world, but you certainly aren't going to be sending out that vibe.
TBH, I'd give more leeway to certain misspellings than others. "Chiwawa" gets no slack from me, but an obvious typo or something along the lines of "dalmation" is a bit more understandable. But honestly, with spell check these days, I'd question anyone whose breed of dog is in the dictionary.