It is deeply worrying and needs a thorough and pretty ruthless review.
You'd have to go back to Oliver Skipp to find a young player we'd either bought and developed or developed internally into a player with first team PL competence, and with the greatest respect that was only the pre-injury version of Skipp. Post injury he has just shown that League One is his level.
There is no doubt Vuskovic is looking at our track record and thinking 'nah'. In his mind, a move to Brighton now will mean he's a Real/Barca/Bayern/City etc player in 2-3 years, whereas if he follows the Spurs route it looks like year one will be out on loan, year two will be competing for a place in the first team, and year three will be establishing himself in the first team, which means his ambition to move to a huge club is delayed by 1-2 years.
It also has to be said that this would represent a major success in another area we've largely failed in, which is to at least generate serious profit from the youngsters if they aren't destined to make it here for the long term.
Gil, Veliz, Rodon, and Clarke all sold at a loss. The painful reality is if we sold Archie tomorrow it would also be a loss. Paltry sums earned on the sales of KWP, CCTV etc. but we're lagging miles behind other teams who routinely pull in £30m+ for nobody academy players.