Evolution requires Abiogenesis or there is no evolution hence why it's always lumped in. At least in my mind. I think it's reasonable to do so for the simple fact you can't get to evolution without it. Creation doesn't requires such an event for obvious reasons.
...my degree is in computer science. At least mine has "science" in it LOL.
Joking aside I think to have a fair discussion you sort of have to concede in having abiogenesis/evolution handcuffed together since you cannot have the later without the former.