I'm not a Tesla fanboy but I didn't think it was biased. E.g.:
Right off the bat he talks about the number of ECU[1] of Tesla compared to others. He points out that this will result in inferior quality due to the number of connections. A no-brainer with cascading effects which has many other advantages for Tesla[2]. Spelling this out will upset a lot of people because it's a valid attack that also knocks the other designs into a corner that makes one wonder what's the point of even continuing. (at least if one expects a ranking on quality etc - then there is no recovering from that).
The missing CAN-FD[3] bus-speed info on Tesla is interesting. It seems Tesla is doing it's own thing here with CAN-FD. Maybe a proprietary implementation (I couldn't make sense of it)?
The other connections like Ethernet, LIN etc are also much less and I'm assuming this can be attributed to simply having such a small number of ECU's too.
No idea what's going on with the missing OBD-II but I'd imagine if you want to roll out a proprietary after-market technology that can only be serviced at a Tesla shop then killing this makes sense in order to lock everyone in (customers but more relevant after-sales).
Tesla Y has no replaceable fuses, ... and it goes on ... and on ...
As a piston/gear-head who hates the brand, and strongly dislikes Musk it's a lot to digest and put up with. I don't understand though why the video is supposed to be biased or not accurate. It doesn't seem they're releasing any info that hasn't been floating around in various places.
I own a Tesla, but I'm not a fan-boy. I can appreciate how having fewer ECUs means, all other things being equal, it would be less failure prone. (But more expensive to replace a failed larger ECU than a failed smaller one). Tesla starting from scratch gives them a lot of advantages, not being tied to a specific legacy architecture or vendors. Again, assuming they actually do it right rather than bodge it :)
Sandy and the other experienced gentlemen in the video are welcome to strong opinions about one approach being better than another; it's not necessarily biased. Maybe you favor a "simpler" design, or maybe you favor one that's cheaper to repair, or uses a tried and true architecture, or more off-the-shelf components.
I actually just had a steering wheel module replaced in my Model 3 last week; the Park button had stopped working. Of course these kinds of things are electronic in virtually all modern vehicles.