I've heard that they had to be very judicious with their trajectory adjustments for the first stage landing, since it was such a large payload/high orbit (can't remember which, too lazy/busy to google) and they burned a lot of fuel fulfilling their contractual duties. So maybe it's not an equivalent scenario to other landing attempts.
They might seem reckless, but what they're doing is collecting data that's arguably worth more than the actual cost of building another first stage engine assembly. Data like the kind they're generating is precious. You probably know all this, franc, just sayin'.