There are stats on nba.com for touches that you could use to try to build a case like that; but defenses will be able to shape who gets touches, so there are limits to how persuasive that sort of case would be.
I think it is implausible that the coaching staff looked at the '23 offense, which was arguably the most effective offense in NBA history, and decided to change it without being forced to by competitive pressure.
They did change it though.
Fox developed his three and started shooting it more (more than many of us would like occasionally)
Despite "run it back" we added Sasha, Duarte, McGee among others - all of whom underperformed expectations and Sasha got injured right around the time he started to play effectively but the latter two were forced into heavy usage to the ire of many
We lost Davis and Metu who did provide offensive sparks and other smaller role players - I think at the end of the day we may have rather had those two over 2 of the above names
Harrison Barnes definitely started to show his age on both ends of the floor
Keegan was allowed to move more on offense instead of being a catch and shoot option which was certainly encouraged by the team as part of the normal growth of a second year high lotto pick
Huerter was wildly ineffective and streakier than the year prior before getting hurt - there may be a chicken and egg thing here but he missed plenty of open looks so it's possible they ran less plays for him rather than just got defended better. People did note we ran less DHO overall and the offense felt spray and pray
Jury is still going to be out on the 24 offseason but we moved on from most of our bigger mistakes in 2023's offseason at the cost of a deep future first and a number of seconds that probably won't pan out and added DeMar who again completely shifts what we can and can't do but we're also seeing a bit of a return to form from Kevin.