Going by your stat, first half of the season they had a 89 wRC+ and second half 97 wRC+
First half .229/.298/.398
Second half .248/.309/.415
BABIP- 1st .270, 2nd -.296
wOBA- 1st .301, 2nd .312
oWAR 1st -39.9, 2nd -4.1
WAR 1st, 6.2, 2nd 9.6
From what I see, is the fact we got better in the second half of the season and we likely are only going to improve from there in 22... I mean we were what 16-19th in about every stat, while first half we were 19th-22nd...Don't get me wrong it's not a major improvement, but we honestly did get better in the second half...
I believe we will be better in 22, which I believe we can get into the top 15 if not higher in baseball stats wise as a team on offense.