You now know what it's like to have a 'golden generation'. We had Gerrard, Scholes, Lampard, Terry etc all at the same time and yet managers with no clue how to construct even a basic team. Only Hoddle played with anything resembling a philosophy and he said something stupid about disabled people and got fired and that was just before the 'golden generation'.
Sounds like Wilmots is your idiot, playing Falani and not Dembele, leaving Batshuayi on the bench when Lukaku was so shit, as you say not using Carrasco till the end.
Above all the playing tactics with a team that has Hazard and De Bryune is negative and not needed.
Your "golden generations" had too many holes in it. It was never really a serious favourite for any major tournament even if you'd only consider player for player. Full backs, wingers and strikers were missing.
Belgium only lacks full backs and a non-moronic manager.