This "debt" is almost solely rental style deals with datacenter constructors. If you make 200k and have a 400k mortgage youre doing just fine.
Datacenters that have not and might not be built to accommodate for future AI demand that may or may not grow to the extent or as fast as the companies anticipate.
A 400k mortgage needs a new roof after 25 years. A data center needs its hardware completely replenished after 5 (or less).