Is " became looked at" grammatically correct? It sounds odd to me.

Context:

The term idiot savant (http://en.wikipedia.org/wiki/French_language for "learned http://en.wikipedia.org/wiki/Idiot" or "knowledgeable idiot") was first used to describe the condition in 1887 by http://en.wikipedia.org/wiki/John_Langdon_Down, who is known for his description of http://en.wikipedia.org/wiki/Down_syndrome. The term "idiot savant" was later described as a misnomer because not all reported cases fit the definition of idiot, originally used for a person with a very severe http://en.wikipedia.org/wiki/Intellectual_disability. The term autistic savant was also used as a diagnosis for this disorder. Like idiot savant, the term autistic savant also became looked at as a misnomer because only one-half of those who were diagnosed at the time with savant syndrome were autistic. Upon realization of the need for accuracy of diagnosis and dignity towards the individual, the term savant syndrome became widely accepted terminology.^[1][17]