Why do most people frown upon the production of Burm/Balls?

[Bluebonnet Herp]

The only mutts I dislike are the ones you can't identify on the spot, and do cause confusion due to the similarities of both parents. This goes for a majority of subspecies crosses, especially within boa constrictors and carpet pythons, and closely related species such as short tailed pythons. Ironically, a lot less people have a problem with these mixes, and somehow they supposedly aren't a threat to lineage purity. (especially referring to carpet pythons!)
You'd have to be blind to look at a burmball, or a wall python, or any extreme hybrid and confuse it for a pure specimen. Hybrids like these practically look like their own species. The only breeding of these to a parent species would be purely intentional, (and unprofitable) and the odds of accidental gene pool muddling are minuscule. Pure animals like pure carpet pythons, on the other hand, are practically a rarity in the trade. Yet somehow being closely related makes it okay to mix these lineages? To me, it's make sense that it would be less of a reason to mix them.
However, I find the general reasons herpers use to hate hybrids rather weightless or outlandish, especially when applied to the extreme or distinguishable hybrids such as burmball, carpballs, boacondas, etc. The purity of species such as Bredl's, Carpet, and Diamond pythons (for example) is one thing, and I honestly wish those crosses would be heavily condemned, but if someone is seeking to produce a litter of boacondas, bateaters, or burmballs, I don't see a major reason why they shouldn't, so long as they responsible when selling and whatnot, as the usual selling of reptile would entail.

I would hope that the goal of intentional breeding a hybrid would to produce some crazy, half-way alien looking animal anyway.

My issue with hybrids is the ethic behind it what happen when the third or fourth generation can no longer be distinguish with an animal that is pure and is being sold as pure?

I don't think that could even happen with most of the wacky hybrids everyone raves about, unless an evil mastermind with this intention wasted tons of money on such a project for years just to produce these mistakable F4's. This, however, is a problem with subspecies and closely related species in so soon as the first generation, and why pure carpet pythons, for example, are such a rarity in the trade.

But is a bateater or burmball a threat to the purity of the reptile trade? Most likely not.