Yep. We are in the new golden age.
I don't fully agree with this. I would say the games that have been released have taken advantage of the time and advancements that newer hardware, game design, development techniques, etc. provides. However, there are genres and series that have flat out died compared to the 6th due to budgets increasing, anti-competitive practices, and the like. Three genres (two close to my heart) that were particularly decimated in terms of variety are arcade racing games, sports games, and JRPGs.
2005 was a bit of a tipping point overall in sports games. With the NFL license being exclusive to EA, other NFL games fell to the wayside. Even outside NFL games, we used to have a greater variety of physically published sports games from 2K, 3DO, Midway, Acclaim, even Microsoft. At least Sony kept up The Show, 2K does NBA, and Konami PES, but outside of that it's all EA. Madden has been criticised for years for being stagnant and abusing the fact they are the only game in town. Dive deep enough into other communities you'll learn games like FIFA and NHL are mired with similar lackluster efforts. Competition kept EA in check back then. Conversely, we have seen an increase in Manager style games, but not everyone want to play those aspects.
PS2 was a JRPG monster. PS4 is not even close. Atlus alone had 7 unique SMT games, 8 if you want to count P3 FES. We got
one on PS4, and a rerelease. Along side giants from Square-Enix, there was Xenosaga, Shadow Hearts, Rogue Galaxy, Dark Cloud, etc. etc. It's thankfully slightly better than the PS3 days at least.
And finally arcade racers. The PS3/360 had some great games from EA, and the beginning saw more variety from Sega, Bizzare, and Rockstar. But the genre died on PS4 and Xbone. Stone cold classics like Burnout Paradise and Hot Pursuit 2010 are merely remastered. We haven't got a Need For Speed you haven't had to make and excuse for since
2012. Midnight Club is dead. Sega only brings their kart racers to console now. Project Gotham is dead. Blur is dead. Pure is dead. Wipeout is dead ish, again its corpse trotted out in remasters as reminders. Motorstorm is dead. Driveclub was born and subsequently snuffed out. Compared to the PS2 generation? Good lord the last gen is lacking. A new, brilliant Need For Speed for five years straight. The perfection that is Burnout 3 and Revenge. Three Midnight Clubs. Test Drive, Tokyo Xtreme Racer! Weird shit like auto Modellista. PGR was alive and well back then. Sega had the AGES line along side arcade ports like Initial D Special Stage or Sega Rally 2006. The list is endless. Arcade racers like that don't exist in the space anymore - it's either 90s love letters like Hotshot Racing, or sim-lites like GRID or Forza Horizon. Nothing really hits that itch of real(ish) cars but arcade handling. NFS fans have been asking for remasters or remakes of the Underground games for years.
A true golden age for me would be to apply the tech and knowledge of today to all genres, all sorts of games. Part of my gripes might be that the market has moved on. What's popular these days is not what was back then. Indies are making up the slack but there are gaps. In some situations, like sports games, we have a wider variety of play styles (i.e.: Manager games) but not a deep variety to pull from. To apply brushstrokes to assume we are all better now? Definitely not.