Because at least in this case, it honestly feels like you kinda don't have any useful information here. They have the space, we know the space is there, and not only is the demand for more space present, but even devs have claimed that more space is needed because of more items being put into the game just with the launch of 4.0 than players have additional storage space for.
Thousands? More like dozens. Either way, still nowhere near enough income to match people paying for one-time items, especially when 1) you don't know how many people are buying items for other people, 2) there are consumable items purchased from the cash shop that may be brought more than once by some customers, and 3) you're not factoring in the costs of server transfers, which happen every single and give WAY more money every month than they get from saps paying for extra retainers.
Frozen assets aren't as damaging as customers leaving because you can't keep up stock. Plus we know that prior to the release of Heavensward (two years ago now), the income from the cash shop was used to get the EU datacenter, so we are plenty aware of what money can be gained from that cash shop.
I've dealt with networks too and I understand what you're trying to explain, but I don't think you're considering that the load space is already there AND they have already gauged the need for more inventory space. It's also why I would rather see the third retainer as free than increasing armory and inventory space even further, which would put WAY more stress on the servers. This is not adding an extra retainer (the maximum retainer limit is fine right where it is). This is simply making the third retainer cost nothing. Barely any profit lost, and it could most likely be made up with the number of people who'd come back after quitting because of this issue and even surpassed by players having more money to spend on more cash shop items for example.
No, I'm putting decency ahead of supply and demand. We shouldn't have to be kicking and screaming about it on the forums when devs are fully aware that this is a problem.
Or we can keep talking about it on these forums, which SURPRISE, people at Square-Enix actually read! The more it's brought up here, the more likely devs might take notice of it.
Re-read your posts while pretending like you didn't write them.
Yes, a basic level of storage, and no other game do you have to constantly pay more real-life money to have adequate storage space. Actually in most major MMORPGs, you don't have to pay real-life money for adequate storage space at all. Maybe a couple of them offering one-time fees for extra permanent storage space, but you don't have to increase your subscription fee just to have a necessary amount of storage space.