For abilities such as the Reigel AT mine, that require a specific unit not built all the time, I think the balance team has had success bundling these commander abilities. Ex: rifleman moltovs AND rifle grenades, Veteran squads applies to pios, Grens and Pgrens. Mp40s and Flamers in Fuersturm ect.
Adding an additional ability to the reigel slot might help to give it more utility for when you just don't feel getting a halftrack is the right call.
Your examples are all infantry-specific bundles. Given that the mines are limited to half-tracks, any new bundle would have to be oriented towards light vehicles. There are currently no other Ostheer commander abilities for light vehicles* so, it would have to be created from scratch. Plus, it would have to be something very good to make bundling it with the mines work.
It's probably better to just leave it as it is.
[* Except for the new Observation HT, which is a bit of a dud and may actually benefit from being bundled with the mines, IMO. I'm not advocating for it, just making an observation.]
Relic Entertainment
cblanco ★ 
보드카 중대 
VonManteuffel 
Heartless Jäger 
Australia
