Doesn't mean diddly. Not much has changed. KRTL still has a long way to go.
Look at the requirements of the amended Rule 15c2-11 in 2021.
The new rule specifies that a shell company can only continue to trade for 18 months following its initial quotation by a market maker. If it is still a shell after that time, it will no longer qualify for public quotation. In other words, KRTL is an OTC shell subject to limitations imposed on special purpose acquisition companies.