I honestly don’t know about that, this strikes me as the exact sort of availability bias we have as Spurs fans. We remember all the times Lucas runs down blind alleys and loses the ball but against Leicester, Burnley, Villa last year I could make a highlight reel where he looks like Neymar.
Whereas with Adama and ASM we remember the highlights shown on MOTD and the odd performance, but not the bad stuff, the turnovers, the lazy pressing, the missed runners etc.
Don’t get me wrong they are much more physically imposing and offer better ball carrying as a result. Overall though their end product, passing, vision, crossing, pressing etc are not better than Lucas at all, so it’s not a consequential difference. They essentially would be slightly stronger versions of Moura and I question spunking big money on that.