Mcgriff and Bautista played in very different eras
A large part of Mcgriff's era, everyone was hitting 30-40 homeruns, it wasn't anything special. Juiced Balls, Juiced Players
Bautista has had 5 good years at the MLB level, he led the MLB in homeruns 2 years and for 2 he was leading the league in homeruns before he got hurt. If Bautista had 5 straight 50 Homerun seasons he would be first ballot.
Not saying that Bautista has a chance, he doens't his career started too late. Mcgriff in his era wasn't that special, and not the same level of player as Bautista