Anyone who has been writing software for more than 5 minutes knows that it's not a once-off expense, it needs constant maintenance and upgrading to keep it relevant (known as "technical debt" in the software engineering profession). Just like when you buy a building you have to pay to maintain that building, otherwise it falls down.
This is something that companies whose core competency is not software, generally don't get. Anyone who has been in the unfortunate situation of having to maintain software for such companies knows that it's some of the nastiest, bug-riddled junk out there, and that's not just because programmers who end up working on such software lose their will to live. It's essentially a building full of holes in the roof because management is too cheap to pay for upkeep.
But Bethesda is a software company. They should know and understand and be intimately familiar with tech debt. They should know that they have to pay off portions of that debt every now and then, or it becomes unserviceable. Yet for years, they haven't. And now they're sitting with the "Creation Kit", which is the equivalent of a building that's been condemned because its owners couldn't be arsed to maintain it, and what is the manager of the building - Todd Howard - doing?
He's standing on the steps and telling the crowd that the building's gonna be just fine with a lick of paint, and that the holes are actually a feature because they offer convenient access to various rooms, and that the water coming in through the roof is a feature because you don't have to go to the water fountain, and that by the way look at all the cool features the building was built with that were cool 5 years ago but are expected now. And nobody is buying his BS.
If Bethesda's corporate greed doesn't kill their game development, Howard's insistence on using an outdated, broken, unfit-for-purpose turd like the Creation Kit absolutely will.