Indigo Partners...
The (perhaps) subtlety appears unperceived or uncommented then...
With a common factor at present being Indigo Partners as lead investor in Wizz & engaged in negotiations/talks with WOW, recently Wizz obtain the 4 daily take off/landing slots currently used by WOW at Gatwick & wef 31/3/19 launch two new daily routes from there.
Coincidence or initial synergy in play?
Indigo Partners with a very large portfolio of single aisle Airbus a/c for future delivery would it could be imagined find another partner airline a very useful addition for the placing of some of those frames.