The basic problem here is that a complex set of idea is being compressed and represented into a single number (TSS). Then THE question becomes, what does that number mean. This is a common problem in organisations (Profit), economics (GDP) and training (TSS). The real question is “What is going on underneath this headline number?” and “What specific type of decision was this number introduced to inform?”
So, as others have argued, you could even do a a single ride of 600 TSS, once every 2 weeks. Or 6 rides of 50 TSS in a week. The appear the same to average weekly TSS!
TSS Is only a general measure of effort vs functional threshold, over a ride, and over a period. It is not a measure of the details of how that ride was carried out, or the various variety and intensity of each ride.
TSS is a measure of the overall training load and stress. (Hours and miles are two others). It is used to interpret the increase in effort and training load against FTP. The training stress: hence its name. Looking at TSS in a day, week or 6 week period provides different indications of training stress and trends. (A richer view that hours, or miles, alone).
To interpret the detail on the type of training, you have to look at the individual intensity and time and patterns of each ride, and then look at the pattern over time. You cannot interpret (or even hallucinate) the individual training effects under those TSS figures. You have to have an understanding of the detail and what you are trying to achieve.
The takeaway: BEWARE AGGREGATED SINGLE FIGURES THAT HIDE DETAIL AND MASK MEANINGFUL INTERPRETATION. USE THEM ONLY FOR THE PURPOSE FOR WHICH THEY WERE INTENDED, AND THE DECISIONS THEY WERE DESIGNED TO INFORM.