I don´t believe in Nostradamus kind of posts.
Then try to learn from history and from 100s of other players who had similar skills and similar flaws like Adama.
It doesn't need to "end" that way, of course.
But if 9 our 10 players with flaws like Adama don't turn into a world class players, and 1 out of 10 improve significantly later during their career, that should make you slightly more cautious about players like Adama, who are good in one thing and poor in 4-5 other things.
And no, Adama is not similar to a young Robben.
The same as young Halilovic is not similar to young Messi.
They ARE similar in one virtue.
But overall game of young Messi or young Robben was not that poor as Adama's or Halil's.
It is hard to explain in numbers, but Messi and Robben had:
10/10 in dribbling
-- and 6-7/10 in other skills, and later improved in those skills
Adama or Halil have 9-10/10 in dribbling
-- but 3/10 in other skills
-- so, Messi and Robben improved from 7/10 to 10/10 in other skills (that's a reasonable and expected improvement for every player)
-- these guys would need to improve from 3/10 to 10/10 (that happens almost never)
So, no, they are not similar players like young Messi and young Robben.
Those guys were much better all-round players, without critical flaws.