Something interesting I discovered on Fielding Bible and Statcast...despite playing 1B last year for the first time in his career, he was phenomenal at it.
In only 215 innings, he had 5 runs saved according to DRS which ranked 5th among first basemen. Statcast had him at 4 Outs Above Average and 3 runs prevented. Both tied for 2nd among all first basemen.
Analytical teams like the Astros have put a surprising emphasis on 1B defense in recent years. Looks like the Twins are taking it seriously, as well.
EDIT: Oh and his UZR/150 was 13.9. Easily the highest at 1B.
Another thought...with the shift limitations, a 1B that has more range might be a big bonus as well.