Based on a presentation on cryptoheros/amatitlania by Sam Borstien at the ACA convention in July, HRP's are most likely an undescribed species, and not one of the 4 recognized convict types. There is also speculation that there are other undescribed species, particularly the Rio Cabayo Siquia that have entered the hobby recently.
I can agree with you there. I have seen people sway one way or the other on this.... time for DNA testing! This reminds me of the first time EBJDs came into the picture and people thought it was an African/jack dempsy hybrid or a totally new species until they did DNA testing.