What we all need to understand is that after oil, we just won't have enough energy to maintain our current way of life. Not just energy by the way: our way of life relies on petrochemical products (from fertilisers to electronics). Solar panels need electronics, we don't know if we can build/maintain them at scale without computers that need petrochemical products.
So we need as much as we can of everything. Both renewables and nuclear.
I can't tell from that article whether they're opposed to nuclear energy or whether they don't think nuclear is the best use of the money (e.g., compared with renewables).