You are correct with you assessment. It does take time and money to uplist. Ask yourself the question: What was benefit from uplisting?
It certainly didn't help financially. Now TTCM has to pay with money they don't have to auditors they can't afford, so they can certifiably say we are broke and have no money. Its transparency all right but a cost so great it is of no benefit to the company only benefits shareholders. Why even bother with the shareholders. They were already wiped out from Roadships and the stock was near worthless. All the positives that you list are have been about shareholders and has little to do with the day-to-day operations (of which there are none).
TTCM does not trade on a listed exchange, hence it has not "uplisted", nor can it.
As far as the company ever qualifying to trade on NASDAQ, the chances of that happening are extremely remote. Clearly, little progress is being made at getting their products to market--products, which, imo, have limited potential. Of course, a minimum $4 share price and more (assets) is required in order to submit an application to FINRA...
News 
Market Data 
Discover 
