My guess, given the timing of everything, it was TLL leadership was waiting until Pajeet's green card was cleared up before firing the two, since they wanted to progressive by making sure another brown tranny was allowed to leech off America. It would also jive with lots of Kiwis questioning how they were running TLL from a sinking container in the desert - that's the answer, they weren't. They were effectively on garden leave.
As to why TLL would continue to pay and allow these two autogynephile scammers to expense trips for 6+ months, you're looking at maybe 250,000K on the outside. Given the money TLL likely pulls in, its probably worth it to keep everyone quiet.
My speculative timeline is that Kjel and Pajeet started Troonblinka when the writing was on the wall at TLL, which would explain why they got the idea; TLL was probably going to force them out after Pajeet's immigration hearing, since losing his job would probably fuck with his immigration status Troonblinka's status as a "immigration safe space" was the back-up plan incase the hearing was denied (notice they haven't pushed that angle very hard since Pajeet got his green card?)
The "outside investigation" will likely be some toothless document addressing TLL's operating deficiencies, assigning blame to no one in TLL and maybe some token "previous management was in over its head and we need to provide resources to future management to ensure that doesn't happen again".
I'd like to believe that Kjel realizing they have his ass for fraud + allowing his boyfriend to continue to scam around in the states overrode his innate tranny desire for drama, and that's why we're not seeing any behavior typical of a member of the rat king.