You can still lose the game for other reasons, including having ten or more poison counters or drawing a card from a library with no cards in it
That being said, Pikachu tends to be the more valuable of the litter whenever it gets featured in a McDonalds pack, and I could see the Roaring Moon card featured here being very popular with players as that is a competitive-grade card
Foils on fake cards are cheap
The cards available in volume 9 of Promo Series A are: Kartana Blacephelon Xurkitree Stakataka Dawn Wings Necrozma Dusk Mane Necrozma Ultra Necrozma ex Promo Series A Volume 10 You can earn one pack of Volume 10 every time you beat the Sweets Relay (Eevee Grove) advanced deck from the event battles list
You have a better chance of getting cards from that archetype, so it's basically a green light to go for it
For the first time ever, a flavourful Universes Beyond card type has been changed for an in-universe printing, and the ramifications of it are huge