Pure guesswork here but I wonder if the club have a plan to exercise their reported buyback clause in the summer of 2023? The intention being that Tino would then replace Azpi in the squad and share minutes with Reece as Dave does now. A potential fly in that ointment however is the possibility of Tino attracting the attention of attention of other big clubs who might make him offers we can't, or won't, match.
Saints' fans love him. I've read ranging from, "Enjoy him while you can, he'll be gone at the end of the season", to, "This kid is as good as Gareth Bale was." Anyone who's read my posts knows I like Tino and have championed his CFC first team prospects but, even so, I think those supporters are going overboard.