What you encountered here is a dark pattern, but not the way you think it is. They try to upsell a feature, but because it is a B2B SaaS product, the users are

What you encountered here is a dark pattern, but not the way you think it is. They try to upsell a feature, but because it is a B2B SaaS product, the users are not the ones holding the credit card. So, to upsell they have to get through your users to the admin / license owner. They prominently display a shiny feature, sometimes leading the users there through misdirection. Then they call for action: you need to request a bigger license, go ask your admin! And of course, someone thought it is a good idea to add a button, which sends a templated email to the primary address to reach the person with the credit card. This notably does not count as a marketing communication, so they can just send it even without explicit permission given prior. So yeah, someone in your team probably triggered it, likely without knowing because they were misled.