It's actually smart if you break it down.
Conte rarely stays with one club very long. He has no emotional connection to Spurs, so the chances he's he more than 2-3 years is very unlikely
Poch's status is only growing. It's silly to think that after he leaves PSG, he'll come back to Spurs if the club is still a mess. Clubs like United and Real will certainly have a look at him.
Last time Poch came to Spurs, he was leading a new reclamation project. I'm sure he'll want to win trophies immediately.
So we better hope it's true. Because it's actually good realistic planning by the club.