IPTK Sounds like they have a solid plan and are starting to execute on it.
Between just Wizz, Frontier and Volaris...These 3 airlines alone carried roughly 80M passengers in 2019...I'd say that is a pretty solid captive audience for advertisers. Not to mention a great sized pool for generating ancillary revs and collecting passenger data.
And just guessing but this still represents probably less than 1k or 500 planes of the 12,000 planes currently with ZERO connectivity.