I suspect that this is an artifact of the suburban developer, National Development. This is their first urban project, I believe.
They will probably regret the wood framing once occupied.
Not their first urban project, Longwood Center is theirs also for one, I believe they are at least partners in a few others too.
The wood construction has to do with the reuse of the existing structure's foundation, dont think the existing footings could handle a steel structure. The other buildings will definitely be steel or concrete, they are 9 stories!