Wenfet has copius precedent for using an MC in the Grace 707. The Linn became a cult table (PRAT, etc) about the same time that moving coils started displacing very high compliance cartridges in the the audiophile wish list. The standard of excellence in arms at the time, the SME Series II, was low mass and had knife edge bearings, so wasn't a great choice with the low compliance Supexes, etc. that were suddenly the British audiophile press's darlings. The Grace 707 was widely available arm and had reasonably good gimble bearings that didn't rattle like knife edges are alleged to, so despite its low mass (and perhaps because it had a plastic headshell and so was somewhat self damping), it was the go to match for MCs until the Swiss (I think) Breuer arm appeared, which had first rate, and expensive, bearings. (Given the propensity of the time for using allen wrenches to tighten the cartridge mounting bolts, there was a fair amount of discussion of bearings that needed to be replaced, which may be why
If you want to read gushing testimonials to the liquidity, palpability, sonorousness, or whatever of the Grace with MCs, just look at British magazines of the late 70s, though avoid Gramophone and HiFi News and Record Review - they hadn't drunk the Kool Aid, though HFN&RR caved after a while (or maybe the moving coils and the associated arms actually caught up to the low mass/high compliance pairings - though if price was taken into account they never did).