Elemental Expressionist death trigger doesn't happen

[Jipsu]

[[Elemental Expressionist]] has a targeted trigger ability that gives a two-part death trigger to target. This doesn't seem to enter the stack, at least when Elemental Expressionist dies.

1:19 PM, T11.DB: Jipsu - Ability triggers: Elemental Expressionist [9ea] - Magecraft — Whenever you cast or copy an instant or sorcery spell, choose target creature you control. Until end of turn, it gains "If this creature would leave the battlefield, exile it instead of putting it anywhere else" and "When this creature is put into exile, create a 4/4 blue and red Elemental creature token." - targeting Elemental Expressionist [9ea] 1:19 PM, T11.DB: Jipsu puts Fractal Summoning [6e0] from outside into their hand 1:19 PM, T11.DB: Jipsu reveals Fractal Summoning 1:19 PM, T11.DB: Jipsu puts Arcane Subtraction [99a] from stack into their graveyard 1:19 PM, T11.CD: Augmenter Pugilist [c64] deals 3 damage to Elemental Expressionist [9ea] 1:19 PM, T11.CD: Elemental Expressionist [9ea] deals 4 damage to Augmenter Pugilist [c64] 1:19 PM, T11.CD: Jipsu loses 2 life at combat from Promising Duskmage [f67] 1:19 PM, T11.CD: Spectacle Mage [185] deals 2 damage to Leech Fanatic [ee4] 1:19 PM, T11.CD: Leech Fanatic [ee4] died 1:19 PM, T11.CD: Augmenter Pugilist [ec5] died 1:21 PM, T11.M2: Opponent casts Witherbloom Command [ad7] (mode 1) targeting Opponent (mode 3) targeting Elemental Expressionist [9ea] 1:21 PM, T11.M2: Opponent puts Swamp [e5b] from library into their graveyard (source: Witherbloom Command [ad7]) 1:21 PM, T11.M2: Opponent puts Swamp [90e] from library into their graveyard (source: Witherbloom Command [ad7]) 1:21 PM, T11.M2: Opponent puts Dina, Soul Steeper [3b6] from library into their graveyard (source: Witherbloom Command [ad7]) 1:21 PM, T11.M2: Opponent puts Swamp [90e] from graveyard into their hand 1:21 PM, T11.M2: Opponent puts Witherbloom Command [ad7] from stack into their graveyard 1:21 PM, T11.M2: Elemental Expressionist [9ea] died 1:21 PM, T11.M2: Opponent puts Swamp [90e] from hand onto the Battlefield 1:21 PM, T11.M2: Opponent plays Swamp [90e] 1:21 PM, T11.M2: Opponent casts Overgrown Arch [033] 1:21 PM, T11.M2: Opponent puts Overgrown Arch [033] from stack onto the Battlefield 1:21 PM: Turn 12 Jipsu (16 - 6)

[github-actions[bot]]

Elemental Expressionist - (Gatherer) (Scryfall) (EDHREC)

{U/R}{U/R}{U/R}{U/R} Creature — Orc Wizard 4/4 Magecraft — Whenever you cast or copy an instant or sorcery spell, choose target creature you control. Until end of turn, it gains "If this creature would leave the battlefield, exile it instead of putting it anywhere else" and "When this creature is put into exile, create a 4/4 blue and red Elemental creature token." (Each instance of that ability triggers separately.)

[xenohedron]

I suspect that the trigger might fail if the chosen target creature is a token. Need to investigate.