Im no expert here, but I feel like when designing these, they likely had an english word(or perhaps some other native language of the original designer) in place of the alien text as they determine what looks good and what doesnt. Then they replace the words with the alien text.
Could still just be gibberish they used, but I feel its very possible it does say something atleast to someone internally.
For the other alien text, it indeed looks like they made their own font and typed English filler text like caution and what have you. Itâs not an ARG, so, that method is good enough, they donât need to hire a linguist to craft Klingon 2.0. 
In the new ones, I donât recognise any pattern off the top of my head, looks like âart made to look like alien textâ to me, agreed.
The new game table for the xeno battles is a real mess
keep clear
area and 16 on its side?
and this one seems to have letters turned correctly and incorrectly
I hope they donât start getting sloppy with the letteringâŚ.maybe itâs too lateâŚ
Most my battles have finished in 16 turns 
Nice spot on the lettering, I was too engrossed in all the stuff to even notice
