You're literally giving examples of how his premise applies in real life.
"Companies in theory only offer volume discounts when it makes commercial sense to do"
- Encouraging more use makes commercial sense because it yields more money overall even with the discount (if done correctly)
- Users aspiring to buy more makes commercial sense because people buying more means more money
- It makes commercial sense to give discounts because large customers cost less relative to small ones due to fixed costs not changing based on customer size
...and so forth. You're saying his premise is irrelevant but giving a series of examples of why his premise is relevant.
"Companies in theory only offer volume discounts when it makes commercial sense to do" - Encouraging more use makes commercial sense because it yields more money overall even with the discount (if done correctly) - Users aspiring to buy more makes commercial sense because people buying more means more money - It makes commercial sense to give discounts because large customers cost less relative to small ones due to fixed costs not changing based on customer size
...and so forth. You're saying his premise is irrelevant but giving a series of examples of why his premise is relevant.