Blinking a creature essentially resets it to how it enters the battlefield, so even creatures that were attacking when they were blinked enter untapped, out of combat, and with summoning sickness
Ultimately, the goal behind this change is to make opening packs more exciting, with even more beautiful cards to hunt for and a greater opportunity to find the special Epic quality cards, as they are less rare than the current Enchanted type
If youre lucky, you might even snag a Foil Borderless Mythic Rare, which only appears in about 1% of boosters
it lets me stockpile it, work around it, and turn it into something bigger later
This flexibility also carries over to deck construction, opening up access to a lot of potential builds since your flicker spells will primarily be reserved for your commander, meaning you dont have to build around a lot of ETB effects to take advantage of Pramikons payoff