On recent experience, the the ability to be both permanently and easily injured is a pre-condition of signing for Saints
From his Wikipedia
He sustained a calf injury in a 1–0 defeat to Bolton Wanderers at Vale Park which saw him ruled out for a minimum of eight weeks
County finished in the relegation/promotion play-off place at the end of the campaign, which the club won. However, Iacovitti was unable to feature due to injury.[34]
"He suffered an injury early in the 2024–25 season, which kept him our of action until Christmas"
"signing a two-year deal with St Mirren, who paid Port Vale an undisclosed transfer fee."