Reddit reviews Pokemon Card Game Sword & Shield Expansion Pack Shield Box

No it doesn't. The Tag Bolt print is also A block (see here). The actual set in which a card releases no longer have any bearing on its legality, only the block marking (or to use the actual term in Japan, "regulation mark"). Note that Japan has not yet reprinted anything from an earlier block into a later block since the start of SM. All reprints have retained the original regulation mark, regardless of whether it was an alt art or not.

We're suspecting that there will be some reprints (with new regulation marks) in the upcoming SwSh base set, if only because staples like Switch will rotate otherwise. Or at least, only rotate for a short time: SwSh base releases 6 Dec, so there will be a week in which rotated cards have no later regulation mark reprint.