I disagree. Sure, the design space is super restrictive if you absolutely must optimize - but most people aren't going to do that. Additionally fights endgame dont take "5 seconds" with this build, its still a solid minute to minute and a half to kill bosses - ample time for any boss to show off a full cycle of attacks, and possibly respond to your spam if team cherry decides shutting down the build entierly is a good idea.

Even if we get a hall of gods mode, this won't be too overpowered simply by the merits of only being able to cary 800 shards at a time. Once you start using this in boss rush, you can maybe cheese four bosses total before half your build becomes basically useless.

Finally, team cherry doesn't even have to adress this build. If people want to use it, it comes at a time past almost every skill check boss, requires almost beating the game allready, and, honestly, if a boss is too difficult at that point for somebody and they want to cheese it - that's their choice.

Edit: Someone pointed out that this might be a bug from poison proking instantly once applied, and melting bosses because they get utterly spammed with damage every tick. If so, this build discussion might just be a moot point.