Well if that's the case then this becomes a lot simpler to ban the e-bikes from trains. Those businesses, or others like them would be forced to set up shop near where the deliveries are happening and deal with overnight storage themselves if they want to stay in business. The transit system can stop subsidizing their business model of moving their bikes around and compel them to provide services closer to where they are needed.
I was already wondering if this would be viable after having seen an e-bike rental somewhere around Dundas & Parliament. If the majority of bikes are rented then you're not creating a huge sunk cost for the delivery guys with a ban.