Someone did a study proving that critics talk about shows out of proportion to how popular they are and like. Yeah. Their example was that Succession is far less popular than Young Sheldon, but its finale had hundreds more articles about it than Young Sheldon's did (a measly 56), and. Lads, it's Young Sheldon. What are people going to say about Young Sheldon exactly? 950 articles on the Young Sheldon finale?
It's not even a new phenomenon to ignore boring or shitty 'popular' shows for ones there's more to say about. I'm sure 90s critics talked about Homicide: Life on the Street, The X-Files, and The Larry Sanders Show way more than they talked about Full House, Home Improvement, or Touched By an Angel, and that 80s critics wanted to talk about Cheers and Hill Street Blues more than...well, Full House. Sometimes the stars align and a massive hit does also have a lot of critical buzz about it like Seinfeld but it's not a new thing of "elitists" ignoring popular shows
I think there is a problem with "normie" TV not being covered but it's not that we need more Serious Analysis of Young fuckin Sheldon (lol) but that a lot goes unchecked when it shouldn't, and online people aren't aware of the odious shit being beamed into the homes of their offline uncles. It took a random tweet for the world to know that The Good Doctor, one of the biggest shows on TV, portrays autistic people as inherently transphobic, or that Law & Order was back and doing episodes about the Havana Syndrome. We need to know what deranged shit is being beamed into the brains of millions, since as the audience for linear TV becomes mainly conservative old people, they're gonna pander to that more
(I do also think some shows get unfairly put in that category. Superstore was frequently ignored for being a network workplace sitcom, but it was quietly a great show about labor, to the degree that "corporate sends in ICE to arrest undocumented employees as a ploy to quash unionization efforts" is a story arc. It's a more knowing show about capitalism than much prestige anti-capitalist media not in spite of being "that sitcom about a Wal-Mart" but because it's "that sitcom about a Wal-Mart")
Also the victims of TV coverage homogenization aren't the Young Sheldons of the world, it's all the b-tier shows and slow starters that would've received fair coverage circa 2002-2015, but are now lucky to get a pilot review, much less coverage of how they improve or what things they're playing with. We need more of that not 1,000 articles about one episode of Young Sheldon???