I'm going to nit pick on a couple of things.
One isn't that PCA's current season is better than any of Dawson's. I don't think you even need to look at WAR to get justification of that - other than maybe to get a reference point for defense.
If you extrapolate Dawson's strike shortened 1981 season to a near full season, he exceeds 10 WAR. Who knows if that would have actually been the result - but he was on the right track. He has a couple other seasons where he gets close to 7 So I'm taking exception with the "a country mile" designation. Again is 2026's season by PCA better than any of Dawson's? Absolutely.
Was Dawson allergic to taking a walk? Allergic seems pretty strong. Dunston was allergic to taking a walk. Buckner was allergic to taking a walk. Could Dawson have taken a few more? Sure. His lifetime OBP is .323. I looked up league OBP from 1976 to 1996 and came up with .325. So over the lifetime of his career Dawson got on base slightly less than the MLB average. 2% So in terms of not making outs Dawson was ever so slightly below league average. I'll take that in conjunction with the rest of his numbers.
For WAR it's not only that a gap of .1 doesn't mean anything; much larger differences are not reliable. Fangraphs completely dismisses a difference of .3 and has to go to a much larger difference before they're willing to make any sort of proclamation - "However, a 6.4 WAR player and a 4.1 WAR player are different enough that you can have a high level of confidence that the first player has been more valuable to their team over the given season." Not definitely, not absolutely - but a high level of confidence. This is from Fangraphs, the org that actually calculates the number. Baseball prospectus, I believe, says there is likely a 20% margin of error in their calculations. There is nothing wrong with WAR, for what it is; but it is not absolute in its nature - the organizations that calculate it are very up front about this.
Is Dawson a inner circle HOFer? Absolutely not. Deed he need a 20 year career to get in? Probably. Is he a HOFer? I think so.