I get it. Again - not saying it's right or wrong, but if you want SSS, then Snell's ERA the 3rd time through is 6.35.
If people want to talk about "going with your best" when the game is on the line. Nick Anderson has essentially been the best reliver in baseball since arriving in TB last year. FIP of about 1.50. 2 WAR in 37 2/3 innings. But I get it, he hasn't been as dominant lately....but your weighing that v. Snell against the lineup a 3rd time where he's historically been poor too. TB makes these types of moves and has really good success more often than not.