All I know is there is a 'monkey see, monkey copy' attitude that is extremely prevalent among coaches and pundits that don't have direct access to certain players or are too lazy to do independent research. Even the supposed experienced ones do that and once it becomes a trend, it becomes a fashionable trend especially if they have a posse of copycat pundits regurgitating the same garbage over and over again. That perception (completely false) becomes their reality. Even, when they see evidence contrary to their imagined narrative, they tend to dig deeper because these idiots are not conditioned to accept their irrational and terrible takes. That gives them license to dig deeper into their narrated constructs. This isn't any big conspiracy theory, but the lazy dogma practiced by most of these morons that have supposedly spent decades making money off of terrible takes with no accountability. If they could realistically be held accountable for their takes, they wouldn't be analysts that would be employed to be meting out garbage and unfounded takes for decades in the first place! Lamar is a unicorn the likes of which these moron pundits haven't seen before. When you see a unicorn that is going to upend your entire analytical ability, then your only course is to own up to your idiocy or take cover with the same take dogmatically, even if you begin to look like an idiot. Sorry, I don't see the Lamar hate as any conspiracy. I see it as the majority of analysts being so wrong on Lamar (like they were on MJ in the 80s'), that it hurts their made-up brand to admit they were wrong! More importantly, in this age of the 24-hour social media cycles, click-baiting pays and keeps people employed. They've found out that not only are these takes by them not held to account, but they can also, in fact, expand their brand. So, they perpetuate the same nonsense over and over again, till even innocent fans of the Ravens fall prey to it.
Here is the thing I am absolutely sure of and that is that every single team's fandom has the exact same two beliefs: the media and the NFL are both against them and want them to lose/fail. Every single fandom has some segment of fans that buy into this conspiracy. The thing is it just does not make sense for either front. It especially makes little sense for the Ravens. The media and the NFL would LOVE for Lamar to be successful because his games are exciting.
Neither they nor the media have any interest in tearing him down yet all of the experts who have decades studying NFL QBs all say he is not a top tier or 2nd tier passer. So the 3 possible hypothesis are: all the NFL media has coordinated a massive campaign to tear down Lamar's ability to throw, all the NFL experts who have spent decades studying QBs somehow cannot accurate recognize Lamar's throwing ability despite having years of tape on it, or they do recognize it and see it as the weak point of an otherwise strong toolset. I employ Occam's Razor here and simply go with the latter because it is by far the simplest answer.