It depends how easy it is (now, or in the near future) to turn information into weapons, and how realistic control of materials is. There's a reason we control access to plutonium, but information about metastable hafnium.
There's also this weird revealed threat model thing going on? Like why does it make sense to support heavy LLM restrictions but leave benchtop oligo synthesisers completely unregulated? (Note: I do agree that wanting to regulate BOTH is at least a consistent and defensible position).