First off no one is saying Hutton isn't BAB, though like Lara he's up there for me with an *.
The language there is disingenuous because the same way the 50's is up there with the 2017 to now, the other era is equally up there with the 2000's as the easiest era to bat. So no, it wasn't somewhat easy to bat. It was flat as all hell with a dearth of fast bowlers.
Yes, Hutton played against a great Australia attack, quality doesn't make up for quantity, and Vivian at one point in his career was consistently and only playing against attacks spear headed by ATGs. All greater than anything Hutton faced. And I also spoke about the difficulties presented by those overall attacks he faced and dominated unlike any other batsman, in score and strike rate.
Ramadhim and Valentine weren't as great as the Indian quartet, especially in India.
None of the names you mentioned comes close to the others Viv had to face. Yes, Lindwall, Miller and Johnston is arguable the 3rd best attack ever, but hain, half of those matches were on the flattest surfaces in history. And there is a drop off outside of that attack.
Then there's also where Viv almost doubles the s/r.
1. That's untrue on both accounts, while 1930s was easier to bat, a large part of that is because of Bradman's insane output. And Hutton pre 1950 didn't have a lack of fast bowlers to face or play against, He played 10 Tests against an ATG attack, his hundred came on an extremely spicy wicket that had been rain damaged. Hutton constantly made runs on difficult wickets regardless of what the general condition was, his ability to do so won England a series in South Africa when he and Compton put a good total on a day 1 greentop with uneven bounce. The 1950s was also substantially lower scoring than 2017-Today.
2. Attacks "spearheaded" by ATGs don't really make the attack ATG, or else the current Indian attack would be ATG, you need a good supply of bowlers and good support and the attacks Viv faced didn't have that generally. Like, even the Tim Southee Led Kiwi attack was superior to Hadlee led NZ attack, Imran and Hadlee's attacks were mid as hell outside them, what Hutton faced against Australia is objectively a tier or two above anything Viv faced and there is no way to spin it.
3. Viv only played one series in India to Quartet and it was his debut series, it was impressive but Hutton won two games in West Indies against those two and had a genuine ATG tour of West Indies where he was the difference between 2-2 Draw and a 4-0 West Indies win. Viv had a great home series against them but Hutton also made 200 runs on a turner against that lineup when no one else crossed 45. All in all, It's about relative in spin department, Hutton having the advantage once you consider his series against Tiger.
4. Talking about flatness of pitches, Viv's huge series in England in 1976 came largely on dead pitches, especially the oval 289, should we remove those as well?
5. 2/5 of the matches were in 40s, and No 40s wasn't all roads, his performance at Sydney on a rain effected pitch and his stand of 30 when England were bowled out for 52 show that it wasn't. 3/5 of the tours were in the spiciest conditions possible IE 1950-51, 1953, 1954-55
6. Bad, Finishing early is never good, I'd want my opener to be a constant threat rather than one that fades after a while.
7. There's also the factor Hutton averages 6 points more, has opening tax while Viv batted behind Greenidge and Haynes, Hutton averaged 61 a year before his retirement while Viv averaged 52.5 a whole three years before his retirement.
