If we are talking about Sony first party, I like that they are putting effort into making new games.  One thing about Sony is that their new IP never really look that interesting at first to me.  It's true that Shadow of the Colossus looked awesome the first time I saw it but that is their second Team Ico game.  Ico doesn't actually seem that special at first glance.  It's the type of game that you have to play to appreciate.  The same can be said of Demon's Souls.  I didn't even consider it until after I heard the buzz about it.

But I mention Demon's Souls and the Team Ico games, because it is the new first party IP that I usually find most interesting from Sony.  For whatever reason, the titles they turn into a franchise are never the ones that I really like.  So they showed off a bunch of new types of games at their presentation.  None of them really looked interesting to me, but who knows?  There may be a few unexpected gems in there even though they didn't grab me at first.

This "sad dad" thing is new news to me. Joel and Kratos are the only 2 that come to mind and that's just 2 games so I don't see a problem.

I think sad dad is the wrong term to use. I think third person, action adventure with strong cinematic focus is a little more accurate. I do think people exaggerate this a bit, but Sony has definitely been focusing on games like this a lot more in recent years and I think that some people were a little afraid that they would continue focusing more and more on games like this and less on other types of games. The ps5 reveal seems to have put that fear to rest for some people because they showed a large variety of games and had little focus on these big cinematic games.

I think this is badly formulated. Generally speaking people have different interests in all things, this includes games. So there are always gamers, which fall short on nice games to play. These people may get discontent, if they miss their favorite genre for a long time. It may happen, that this lack of favorite genres may be put on some other popular gaming genres. It is a bit unfair, but also there is a kernel of truth, as the game industry decides where to put the focus.

So I personally would pin it on sad dad games, but certain genres may be underrepresented. If these genres get more titles and exposure, no one will complain about sad dad games anymore.

No idea what the OP is saying but Sony has always been #1 at offering the widest variety of games when it comes to their 1st party games and it doesn't look like it's slowing down any time soon.

The only thing I've noticed is that Sony has backed away from the FPS market (with Killzone Shadow Fall being the last) as they seem to rather do deals with Activision since CoD continues to dominate the FPS console market.

Eeeerrr for me PS4 wasn't the sad dad console and there is good variety on it. The titles showed for PS5 were sequels to those games or similar to what was on PS4;

*reads first paragraph*

Well it is basically a strange comparison, Sony have more variety on PS4 than Switch even if we only considered third parties, the 4000+ games have all bases covered. There isn't any genre that Switch have games that PS4 wouldn't.

What is a "Sad Dad" game? Examples please. I didn't really see any examples and have honestly not heard the term before now.

A fitness adventure game like RingFit Adventure, a sports RPG like Golf Story, a life simulation like Animal Crossing.

But probably you can nitpick and find something that has on a first glance the same genre. But this thread provides examples of the different direction, the genres I said are lacking on Switch: https://gamrconnect.vgchartz.com/post.php?id=9167930

Ask yourself if you see V Rally as a replacement for GT or Forza, Telltale as a stand-in for TLOU, Doom/Wolfenstein while good as approaching the same people as COD/Battlefield and the gimped FIFA on Switch being a replacement of the realistic sports games on PS4. And think if the games on PS4 you want to name are really having the same impact as the ones I named above.