My point is there is a difference. Saying trim isn't needed is your opinion, having Trim allows your SSD to run at optimal speeds instead of waiting when idle to do GC. No it isn't needed, but there is a difference. How big of a difference depends on the user and what drive they have.
Yes you can hack your OS, and trim will work. But that is not the point.
Never said it voided warranty. Yes there is a warranty on drive you buy. But not by Apple. And Apple doesnt service third party drives. When you take it in for service, sometimes Apple could blame everything on you placing drive yourself, or damage your machine when you upgraded. I have a business account and this does not really apply to me. But others it does.
Good to always return to factory spec when taking in for service. Third party drive would have to removed. Not fun.
See the difference.

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Yes. In Anands article he states all 2012 models use 6g controllers. Sandforce based toshiba probably with custom Apple firm ware. I know a few people in Apples supply chain, and they are telling me Toshiba and Samsung, both 6g. Dont know Toshiba model, but Samsung is 830 controller same as retina blade SSD.
6g speeds, and native trim. Best of both worlds. But you will have to pay for it. $200.00 over retail on average.