Because is specifically says on the delivery sheet for most of these films: ‘Alchemist conversion unacceptable’.
Also, even if we could use an Alchemist, that would not solve the ‘insert edit’ issue, which is probably the most annoying part of this.
Some of use here were thinking that if there was any way to play out 23.98 through the SR deck, making the deck do the 2:3:2:3 pulldown onto the Digi tape at 29.97. Somehow ‘locking’ the decks, so second for second they would match, and we could insert through the SR. Not sure how plausible that is, but I know that Sony SR deck is pretty clever!