I see one issue with hybrids, and that is lack of knowledge.
Mitochondrial DNA is crucial in understanding and working with hybrids, the OP did not tell us what mitochondrial DNA his hybrids have, and nooe cared to ask in all the 57 replies.
Also, to get fertile hybrids rather than infertile ones, the chromosome count must match and the two original species need to be rather closely related.
if you breed a male carpet python to a female ball python, mitochondrial DNA will be 50% carpet 50% ball, while mitochondrial DNA will be 100% ball python. Mitochondrial DNA never gets redistributed and always goes unchanged from mother to offspring.
You can, if you really screw up, produce a snake that has 93.75% ball python chromosomal DNA and only 6.25% carpet python chromosomal DNA, but if you screw up the point about mitochondrial DNA your hybrid could still have 100% carpet python mitochondrial DNA. And people dont even label their hybrids properly, they dont tell you what mitochondrial DNA it carries.
so yes, as these change owners and others breed them, things are bound to get confusing. If anything, a hybrid project requires better and more detailed recordkeeping, and more intensive tracking of genetic issues. And i dont see it.
If its tracked properly and it is prevented from descending into chaos and confusion about the genetics i would not see a problem with hybrid projects. But it seems like people just produce them, and then sell their F1 hybrid hatchlings to anyone, and dont even point out the issues with mitochondrial DNA. I dont really like that.
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