Here are the list of the overrated and underrated teams before both international LANs:
Reykjavik:
Overrated:
Team Vikings : People weren't aware about how Brazil played the game and the people thought they were gonna dominate on LAN due to their aggressive playstyle and aim. They were expected to finish 3rd ahead of V1, Sentinels and Nuturn.
Team Liquid : They were expected to be the first finalists and their game against V1 was predicted as an EZ 2-0. However they got down to the lower bracket and finished 4th when they were expected to be a confirmed Finalist.
Underrated :
V1 : People underestimated them since they were playing with a substitute but they showed their true potential with a stomp on Map 3 over Liquid. Their match against Nuturn was arguably one of the best BO3s of the year and if not for the typical NA throw they could've finished 3rd.
Nuturn : Nuturn were expected to come in 5th or 6th but nobody expected them to reach the upper bracket final against Sentinels. They played fantastically against V1 and Fnatic but their poor performance on Haven was the reason they bombed out.
BERLIN:
Overrated :
Sentinels : They were expected to mop the floor against G2 and the other teams in their group. A last minute re-organisation of their games wasn't really favourable to them and their second match against G2 was arguably the worst they had ever played since losing to ENVY in Stage 1 Challengers 2. An 8th place finish isn't favourable for one of the favorites of the tournament.
Supermassive Blaze : They were the Turkish powerhouse in the tournament and their qualification games were really good with them reaching the finals of the Challengers finals. They were expected to make it out of a tough group A but their first match really showed their LAN nerves weren't as strong. They fought out a tough 2-1 against PRX and put up a good fight against Acend in the decider.
Underrated:
Vision Strikers : A lot of people felt VS wouldn't make it out of a tough group A while playing against Acend or SMB. However they proved everyone wrong with 2 comfortable wins against PRX and ACE and put up a good fight against Gambit in the quarterfinals. Had it not been Gambit in the QFs they certainly could've made it past top 8.
G2 : Everyone thought that G2 were the worst EMEA team in Berlin and made comments about how TL deserved the 4th spot. They proved everyone wrong by putting up a close series against Sentinels in game 1 and mopped the floor in the rematch against them. They topped their group and went to the SF but their game against Gambit isn't eveident of their good showing in Berlin.
ENVY : With their coach not being allowed due to Visa issues, ENVY were the least favorite among all NA teams. It wasn't expected that they would reach the finals but they did so without dropping a map against SEN and 100T. That was a great feat in itself. They did put up a close fight in all 3 maps but the lack of a clinical performance in the finals hurt them against Gambit.
Hope you agree with my takes.