Generally, I agree with everything you write here, but I think Abols will have exactly the same problem Balcers has, it it top6 or nothing for him at NHL level. He will simply be grinded into oblivion by the players of Girgensons mold. Yes, he protects puck well, but NHL physicality is real and punishing. Better players than him fail, just like he did once already and I think signing with with Swedish team long term signalizes he agrees with me (and you too).
Balcers and Abols are two entirely different type of players, so I don't agree with you at all.
Abols with his *current* style of play fits the 3C/4C role perfectly. He's not soft, nor is he offensively-slated, he's in no way going to experience the issues Balcers is facing, so your assessment of Abols quite frankly does not make any sense to me.
Why on Earth would it be top 6 or nothing for Abols?
He quite literally was placed on the 3rd line in Örebro in the deciding play-off matches to even out the lines.
He's great at puck possession, dominates at face-offs, has great reach/wingspan, uses his body well, wins most of the puck battles due to his upper body strength and he can easily provide secondary scoring. He's pretty much the definition of your textbook bottom 6 NHL forward.
He has never failed at the NHL level, he bailed out of AHL due to having to play bottom 6 minutes there, which would be entirely redundant with his numbers in SHL and his showing at the World Champs, where he's had the chance to play against all-NHL teams without any effect on the efficiency of his game.
Can you name a few examples of similar players (big bodied, puck-dominant, with similar rates of scoring) failing at the NHL level?