From what I read, the calls actually evaporated opposition to the bill.
Which, I'm NGL, if you're worried about an app being used by a foreign adversary to encourage anti-social behavior in your youth, a bunch of people calling in acting like drug addicts getting their drugs taken away is only going to erase doubts.
It doesn't help that they'd even be more justified when it's known that it was caused by users getting pushed notified by Tik Tok to do it.
In my opinion, considering Tiktok's algo they had the best circumstance to notify a mix of their users more aligned with the actual electorate. The fact they ended up with the worst representation of their user base when it came to confirming the suspicions of politicians says everything.