In 20 years and several different companies I have always heard this but never agreed with it.
Sure, the company wants new features to market, but the company also wants things to freaking work.
During layoffs and hiring freezes I have seen SRE type orgs fair better than their R&D siblings.
In only one place I worked was there this culture shift of always having to keep building new things and not reward maintaining old things. It actually shifted to that culture while I was there. Constant migration to new internal tools, constant depreciation, and half baked migration stories. After the people who built the product get their promotion they go off to the build their next portfolio piece. The new shiny quickly becomes unmaintained and a new team comes and builds yet another replacement. In 6 years one internally built tool was replaced 4 times with new internal tools, with users spread across all four.
You can say that this was just poor execution, but in reality saying maintenance is not valued by the business is incredibly toxic and leads to self destruction.