This news is so funny. Tether detractors see this as confirmation that they were right all along, while crypto currency fans say that this is confirmation that it was FUD all along. No bridges were built in this endeavour.
It is confusing why you care about bridges with regards to fraud. When was fraud related to consensus building activities? Huh?
If you want to blame anyone though it's probably the folks that have been working on layer 2 since 2017 but haven't delivered in a major way.
Be reminded that the overlap in this venn diagram is enormous.