It is absolutely a limitation, because there are things you can express in other languages that you cannot in CSS.
But a limitation isn’t necessarily bad, and is often good. Finding the language of least power (ie it is just powerful enough to express the sorts of things you want, and no more) is very useful for safety and productivity, but in CSS’s case it seems like it’s no longer powerful enough to express all the things its users desire.
But a limitation isn’t necessarily bad, and is often good. Finding the language of least power (ie it is just powerful enough to express the sorts of things you want, and no more) is very useful for safety and productivity, but in CSS’s case it seems like it’s no longer powerful enough to express all the things its users desire.