I think AKM makes a good point.
Even if you disagree with the idea that Ichigo is swatting aside cross-sections of blades from the pillars of Senbonzakura heading his way - the idea that he is only shaving off a tiny amount at a time isn't one that is rooted in hard evidence.
The page of Ichigo and around 69 visible petals doesn't mean that those petals are the only ones he has deflected - if they were then you'd still see the remaining pillars of Senbonzakura in close proximity to him. It is far more likely that Ichigo has just deflected the mass of Senbonzakura out of frame and those visible ones are the remnants.
Byakuya stating that Ichigo "
swatted them all away" is not proof of what happened. It is just a description which Shadow and I have pointed out has multiple interpretations. The bowling analogy really is the best metaphor for this. If you score a strike it is fair to say that you "knocked all the pins down" but nobody interprets that as meaning that you had to knock each one down with the bowling ball itself.
Ichigo swatting back a mass of petals - and those petals hitting the ones behind them (since as Arc pointed out they can't phase through each other and there is only limited space for each one to occupy) - is just as plausible if not more so due to the nature of physics.
Claiming that Ichigo knocks back more than just what he could hit with his sword is an impossibility doesn't work as a counterargument. You can think it is an unlikely feat but as Byakuya has described it, Ichigo's feat is "impossible" anyway.
Something else that is being ignored if that the sheer difference in number of strikes between Ichigo being blocked by Senbonzakura and Ichigo swatting away Senbonzakura. Ichigo simply hitting harder & faster is one explanation for him swatting them away, but the other is the fact that he used hundreds / thousands / tens of thousands of strikes in rapid succession.... I don't see how you can "Ichigo was blocked by Senonzakura when he struck it once, therefore he can't deflect all of Senbonzakura with thousands of faster strikes!"
As for where we go from here? My best idea right now is for some Calc Group members to judge what interpretation of the feat may be more viable for calcing, and to see if higher members of staff like DDM and AKM has anything else to say about the feat.
The other,
other alternative is for the feat to be rejected altogether due to too much disagreement on it.