Sounds like they are optimizing for a KPI on time to full integration. Someone else paid for it, now they want to make sure that you are actually using it.
Still absurd, but I know this is a problem friends of mine have had.
The "here's how to use the product you paid for" emails that trickle out over a few weeks or a month is vastly different than "throw you into every single marketing email bucket we have" but companies seem to lean toward the latter.
