Japanese Melty Blood players are not infallible. Some of them are capable of making really bad, on-the-fly decisions even at tournament level. Refer to the example match in the embedded video above. Twice, the VSion player attempted to shield Hisui’s EX vases — each time, the shield failed, and the VSion player proceeded to lose both respective rounds.
Why would you attempt to shield an incredibly fast, multi-hit projectile? Especially when you are using half-moon, and during Heat? Think about it. The risks of failing are numerous:
1) You lose your Heat due to the auto-spark of half-moon.
2) You can no longer regenerate your red health (which that VSion player needed).
3) As VSion, you lose access to three powerful reversals had you remained in Heat: shield bunker, 623C EX uppercut, and her unblockable arc drive command grab.
4) Half moon characters cannot hold shield unlike crescent or full moon. Therefore, shielding Hisui’s EX vases requires very precise timing, which will vary depending on the distance.
Again, with so many risks, if I were the VSion player, I would have just blocked the vases, held on to my Heat and reversals/bunker, and just slowly wait for another opening.
It’s very bewildering to watch Japanese matches sometimes. At this high level of tournament play, you’d expect a safer and smarter level of play. Especially in a momentum-heavy game like MB, where momentum is life and a single mistake will instantly change the flow of the match.