The recent Greemy Meteorite feat we have accepts the meteorite with a normal meteorite rock density, is this correct? That calculation is wrong and can be recalculated and raise the impact and power of the meteor with a few simple adjustments from the manga. We have confirmation that the barrier disintegrates everything made of reishi, including Shinigami, but by this time Ichigo and Chad's reiatsu that was in the canon ball they used to enter the seireitei was
melted. And we know that both Ichigo and Chad bodies and spiritual pressures are far more dense than rock or concrete. Chad being able to make craters easily on landing and Ichigo obliterating walls and being able to crush Zanpakuto with his bare hands (way tougher than steel). Chad even tanked an I-beam as a human. The meteor
mass did prevented the meteor from been obliterated at first but the density had to have been way stronger than anything the barriers have melted in the past. Otherwise, the meteor would have stopped at the barrier and rolled down the barrier until it fell outside the seireitei. This suggests that Gremmy made the spiritual densite of the meteorite out of a material more powerful than the barrier, and this is to be expected since the Quincy had been spying on the seireitei for years, discovering its weaknesses. Can this be done?