It might useful to compare
Tolkien's comments on E.R.Eddison, about whose work he had conflicting, or we could say "nuanced" views, writing in a 1944 letter to Christopher of hearing Eddison read "a new chapter from an uncompleted romance -- of undiminished power and felicity of expression".
In Letter 199 (1957) he writes:
(My emphasis)
I'd call that as extreme an example of an "on
the one hand/on the other hand" attitude about an author as you could find; we can only guess at whether he might have expressed something similar, had he written more about Herbert.
About the Alice stories, it should perhaps be kept in mind that they're filled with parody and satire, aimed at many targets, some, like Victorian politics and moral attitudes, losing their sharpness and relevance to the mere passage of time; some, like
the White Knight's song as an elaborate parody of Wordsworth, due to lack of familiarity with their originals; or many which are more or less in-jokes, such as the Hatter's "Twinkle, twinkle, little bat", which, besides parodying the "Little Star" song, something that would have delighted
the young Liddell sisters, referred to a mathematics professor at Oxford, who was known as "The Bat" because his lectures flew over the heads of his students.
One more little note:
In this, he reminds me of H.P.Lovecraft, that lover of everything 18th century, and hater of everything 19th, who, when finding himself at any event where "America" ('My Country, 'Tis of Thee') was being sung, would loudly sing the words to "
God Save the King". 😄