Time jump can be confusing and I miss the younger Alicent and Rhaenyra but I don't agree that any of the characters were inconsistent, especially compared with last season of GoT which had gross inconsistencies with character in just a few months. All HoD personalities now were foreshadowed in the previous 2 episodes and logical considering the 10 years in between.
Criston Cole - he was clearly broken last episode. He was deluded to think Rhaenyra would go to Essos with him and her clear refusal and finally the wedding broke him. It makes sense he would become more bitter watching Rhaenyra take up with Harwin and have 3 sons with him over 10 years. Some people are like that, never get over their first love and grow to be bitter and asshole-ish over 10 years. I've seen something similar happen. Also, Criston was never truly a bastion of honor. He did win that first tournament by taking advantage of Daemon turning his back and attacking Daemon from behind (sure Daemon was overconfident to turn his back but it's not like Criston let him turn around so he could take him out head-on) and he did jump right into bed with Rhaenyra without complaint. It's not like this guy was ever a Barristan or a Duncan the Tall. He's always been a bit of an opportunist in it for himself.
Alicent - everything she did seemed like a clear extension from the events of the last episode. From Otto's passionate statement to prepare Aegon for being King to her earlier conversation with Larys Strong to how she arrived at the wedding late, interrupting Viserys' speech and wearing green which said a lot about her decision and future intentions and the way the head of House Hightower told her Oldtown has her back. Stranded in the den of vipers that is Kings Landing, she was either going to sink or swim and she clearly chose last episode to swim in the intrigue and forge her own path for her and her children. The 10 years from 20 to 30 see people change a lot and I think Alicent was very consistent with last episode and her development as a character makes perfect sense. I think the older Alicent actress did a great job. I thought I would be more annoyed but I was pleasantly surprised.
Daemon - this might be the starkest difference but it's also logical. It's not uncommon for hotheads in their 20 or even 30s to finally settle down and become milder with marriage. He targeted Laena last episode and he always loved his drink and partying so it does make sense he would be spending time in the free cities drinking and immersing himself in their ancient libraries for a while. I think this episode reflected some of his softness to family that was shown in the very first episode with him bringing a gift for Rhaenyra. He was playful with Laena when they were riding dragons together and he chose not to risk her life by putting her under the knife to save their child (in contrast to Viserys). So I don't think his ambition and temper are gone,they've just been submerged for a while with his marriage with Laena who he really seems to respect and love. It will likely re-emerge now with Laena gone. I would have liked to see more here though, about how Laena got Vhagar to be her dragon or a flash of Daemon in the intervening 10 years.
Rhaenyra - definitely not as rebellious or independent but it does make sense in the sense that she did agree to get married, she made that pact with Laenor and followed through with it. Her rebelliousness is shown by her blatantly taking up with Harwin and having his kids. It might be less obvious and pleasing than her more overt rebelliousness but it does feel consistent when she chose to keep her role as heir and play the long game her father wanted her to play.
It didn't matter how they dealt with the time jumps, people would have complained.
This is the most reasonable way rather than using some shitty deepfake.
Agreed. If they went the deepfake route people would have been complaining about that too. The time jump is just something to accept when the show spans decades instead of 5-6 years.