Well...that's certainly the more "tin foil hat" version of the events.
The facts are that moved construction of the pedestals to the New York factory (Giga 2) and since then there has been a shortage of those parts all around the country. The shortage only started when they moved production. So for your theory to be correct, they would have needed to move production and simultaneously decided to delay finishing chargers.
Truthfully, I don't think your theory holds any water at all...because if you really wanted to "avoid additional losses" then you wouldn't even start building the chargers in the first place. Why spend millions of dollars all over the country to get chargers to the point where they only need the pedestals to be complete just to try and save some money by not incurring demand charges? Even for Tesla that would be way outside what is normal.
Tesla is now making Supercharger V3 and energy products at Gigafactory 2 - Electrek
Tesla very obviously _wants_ to build more Superchargers. More Superchargers is a good thing and a selling point. But the construction costs for a site are essentially fixed. So it's easy for them to allocate and budget for it.
But, once the Supercharger is powered up, they will start paying utility fees, power charges, and demand charges.
Even being generous with demand charges at $10/kW, that would be $1.2k ($14.4k for the year for each simultaneous 120kW session, plus the per kWh costs. A few Model 3 owners per month paying $0.28/kWh isn't going to cover those costs much. Plus, if you have S and X owners using them, those owners won't pay anything at all to Tesla so they're just additional overhead.
In addition, once up, they will have to handle any ongoing maintenance.
The work they are doing in lots of places, noticeably along the TCH in Canada, is laying the ground work, installing all of the conduit and the Tesla cabinets. They have cables in the conduit, which is capped or covered. With that work done, Tesla won't have to dig in frozen ground.
Once that work is done, the rest of the installation is just making connections, which means that they won't have to dig and should be able to enable the sites quickly, even in winter.
So, Tesla can allocate budget to the fixed costs, but hold back on commissioning to avoid the ongoing variable costs, while also being able rapidly to commission sites if their finances improve.
Although they have supposedly moved production of the pedestals to GF2, the total number of pedestals they need to produce is relatively low. There are 186 sites known to be somewhere from location agreed to under construction worldwide and many have been sitting for months awaiting commissioning. Tesla builds many more cars in a week than they need new pedestals to supply all of the current projects. It would be very odd for them to have a production problem with the pedestals.
I think the lack of installed pedestals is a symptom, not a cause of delay.