'scholar':
Really, then you must explain why?
Wow. 🤦♂️The summer solstice is an astronomical event. Changing the date of the solstice so extremely would require a significant alteration to the earth's axial tilt and/or distance from the sun (very significantly more than the range of its elliptical orbit).
Even if it is argued that such a catastrophic change did occur, any such change would make it impossible for modern researchers to accurately predict the positions of any stars or planets in the Neo-Babylonian period.
If in fact, the summer solstice has any relevance as our critics make no comment on this fact.
Maybe other commentators haven't raised it because the other problems with the Watch Tower Society's flawed analysis are generally sufficient to show them to be wrong. But I am quite clever as well, so I don't mind being first.
Perhaps this is just a 'red herring'!
You wish.