It's impossible to generalize accurately about courses, programs or the students in them. We do not call our internships "zero to hero" although about a third of those that join us have never been certified. But by blanket saying you wouldn't hire them or that top schools wouldn't have such programs is pure oversimplification. Virtually all of our instructors land jobs and have kept those jobs for years and are quality instructors. Good schools (and ours is one of those) make sure those who should not be instructors don't become one. Standards are there for a reason.
For the OP, I urge you to take a look at us here in Aquanauts. We offer both $10,000 and a $6,000 programs so all price needs can be met. We have an unrivaled pass rate on the PADI instructor exam , the best job placement of any similar program and exacting standards.