The poster I was responding to stated, "...UNLESS the OLine improves, the offense will not. Stafford can't win from his backside."
It looks to me like there's an implication there that if the OL stayed as is, Stafford would spend a lot of time on his backside. To be on his backside he has to be sacked or at least pressured. Thus, I interpret his statement above as a narrative that the OL as is, gives up lots of sacks and pressures.
Pointing out that the OL as is doesn't give up lots of sacks and pressures directly counters that narrative.
If you don't like PFF, how about PFR?
Per PFR, Goff was (among starting QBs):
Sacked the 7th fewest times
Goff had the 11th most time in the pocket despite being blitzed the 5th most in the league
Tied for 7th for least number of QB hurries
10th in pressure percentage despite being blitzed the 5th most in the league
Since Goff didn't spend much time on his backside with the current OL, I maintain that Stafford won't either.