Not a line I know anything about, or the Morra Gambit in general having discovered that if prepared to defend c3 Sicilians, that's all you need to know ( 1.e4 c5 2. d4 cxd4 3. c3 Nf6)
With engine assistance, these seem to be the critical points.
Provoking e5 seems unwise, with .. a6, .. e6, .. Bd7 or even .. h6 suggested as slightly better alternatives.
Even so, Black still has a pawn in compensation for the suffering, but it doesn't completely slip until
with .. Rb7 suggested as the defence to hold things together. That had already been played, admittedly in obscure 1990s junior tournaments.