So both were compromised through TMobile sim swap, which was the backup for not having access to your 2FA? I wonder then what the point is of having 2FA at all

So both were compromised through TMobile sim swap, which was the backup for not having access to your 2FA? I wonder then what the point is of having 2FA at all if you can just click a few buttons to bypass them with an SMS. Were you specifically targeted in any way that would make the attackers go find your phone number and perform the swap?