Exact Match for JOINs without the ON clause

[hrshtv]

Consider the below case:

predicted = "SELECT professionals.first_name , professionals.last_name FROM professionals JOIN treatments ON professionals.professional_id = treatments.professional_id WHERE treatments.cost_of_treatment<(SELECT AVG( treatments.cost_of_treatment ) FROM treatments)"
gold = "SELECT DISTINCT T1.first_name , T1.last_name FROM Professionals AS T1 JOIN Treatments AS T2 WHERE cost_of_treatment < ( SELECT avg(cost_of_treatment) FROM Treatments )"

I get exact match = 1 for this (using eval_exact_match). Is this by design? Since the predicted SQL has an additional ON clause after the JOIN.