Because many MacRumors readers are also capable of reading Musk's own words and adjacent stories about Tesla's behind closed doors decisions. People's dislike for Musk and/or Tesla doesn't come out of nowhere.
To your second point, based on my definition of innovation Tesla are not innovative as nothing they've produced has shifted any paradigm yet. Apple, like Tesla, don't necessarily have to invent everything they popularize (smart phones existed before Apple, EVs existed before Tesla) but Apple's product categories are significantly more paradigm shifting than changing the propulsion system of an otherwise identical vehicle. Apple's products are often ready-for-the-masses packaging of truly ground breaking innovations (Internet, cellular, GUI/displays, digital computing, etc.) that they didn't invent but the end result changes how society (or more generally speaking "a system") works.
Mac/personal computers = helped transition computers from specialized, shared tech for geeks and researchers into something useful for the everyday person, game changing
iPhone/smart phones = a connected multimedia creation and browsing device in your pocket, game changing product class that changed almost everything about how information is shared and absorbed in our society (for better or worse)
Tesla/EVs = exactly the same automotive experience except you plug in your car at home instead of at the gas station. Nothing about the way I live my life has changed driving one now vs. when I drove a gas car. If everyone had a Tesla tomorrow nothing about our society would fundamentally change except for electricity infrastructure issues and a bunch of gas stations shutting down. I don't think the same can be said for if everyone received a smart phone or personal computer overnight.
iPhone/smart phones = innovative, paradigm shifting.
iPhone/smart phone tech upgrades (camera, screens, speakers) = mostly not innovative, the paradigm has already shifted via the original innovation.
Personal, mass produced automobiles = innovative, paradigm shifting.
Automobile upgrades (seatbelts, airbags, turbo chargers, EV propulsion, hydrogen powered) = mostly not innovative, the paradigm has already shifted via the original innovation.
Note that the innovation is moreso attributable to the overarching category (the smart phone, the computer) rather than the specific implementation (the iPhone, the Mac). It's just that Apple happened to be there at the right time with the right implementation of the category to act as an ice breaker.