Sunflora getting skipped for a second Yanma/Yanmega... eh...
Happy for Wynaut, Elgyem/Beheeyem, Finneon/Lumineon, Tirtouga/Carracosta, Drilbur/Excadrill, Archen/Archeops, Relicanth... quite a few neglected Pokemon actually! Between Remix Bout and Dream League we might get everyone (besides Abra/Kadabra) printed in Gen 7 yet!
Aerodactyl can OHKO Pikarom, which is neat. That ability is super nice, and you can grab it directly off of Lab. Without DCE, it's probably not the best primary attacker, but if it's reprinted, it can work. Unfortunately, no fossil so far is particularly better as a primary attacker, so it's something.
28 total Gen 5 Pokemon. Some of these are including Pokemon we haven't seen since the BW era. Basculin, Archeops, and Carracosta come to mind of the ones we haven't seen (Leavanny/Terrakion have already been established). Stuff like Wynaut for the first time since, I think the HS era? Finneon/Lumineon, Elgyem/Beeheeyem, and I think a few others got their first cards since the XY era, and a lot of cool types for Pokemon, like Fighting Heracross and Steelix.
This is why I don't believe Pokemon is doing only gen 1 pandering. They're getting closer and closer to striking that balance with the last few sets. Although you have ultra rares with popular Pokemon, they're doing a lot of things like this that show they're acknowledging the other Pokemon out there.
It might be because I haven't played in a while but isn't that first Sewaddle with Sprout pretty good? It allows you to search your deck for two stage 1 Pokemon and put them on your bench, meaning that you can skip the basic stage Pokemon and can essentially get Stage 2 Pokemon out in 2 turns if you have the stage 2 cards in your hand or another search method.
Sure, you will very likely have to give up a prize to use it but the fact that you can have two stage 2 Pokemon on your field by your next turn sounds like its worth the trade off. Sewaddle's colourless energy requirement also makes it quite versatile so it can fit into a lot of decks.
Of course, energy acceleration in the deck that you use Sewaddle in will be preferable since you'll only be able to attach one energy to one of the stage 2 Pokemon otherwise by the earliest turn that you have them.
Edit: The original translation for Sewaddle must have been incorrect as the translation has now been changed from searching for 2 stage 1 Pokemon to searching for 2 more Sewaddle. Welp.