23 wickets in 5 tests against a strong lineup is good, I didn't call it great. You were the one who said he had nothing of note away from, that's just wrong.
Before that final test he had take 28 wickets in 5 tests.
The fact that you are asking to remove his debut series is a sign that he wasn't as penetrative at home. And it's not just those two series he has quite a few at home where he just didn't show up at all.
And Lillee at home vs 79/80s England is better than Ambrose 97/98.
Your main issue is you don't see low wickettaking as a problem as long as a average is low, but a team benefits more from wickets.
also 1981 Gooch really? care to tell us what his numbers during the Trent Bridge fifer were?
It's an okay series, still, he has nothing away from home against a truly strong unit, 1993 Australia clears him. Again, I find it funny how you take such an offense with Root's record in Australia but are completely fine with Lillee having literally nothing in any difficult setting away from home, wonder how that works.
The fact you've to judge him based on statistical impact of his debut series is more telling, Ambrose from 1990 forward took 2.4 WPI at home, good enough, struck at 19 a piece and so forth, but true use a series where he wasn't at 100% and his debut series to underrate him.
that series is the equivalent of Ambrose home series against England in 1990, actually, let's do an excercise!
Lillee at home vs England: 75 wickets @ 21.50, 2.84 WPI
Lillee at home vs West Indies: 50 wickets @ 25, 2.61 WPI
Ambrose at home vs England: 76 wickets @ 16.50, 2.92 WPI
Ambrose at home vs Australia: 50 wickets @ 23.48, 2.17 WPI
Yeah such a big home gap.