You sure took that statement to a weird place.
Edit: I know the history, you are free of harmony gold unless you want to buy Robotech specifically or want dubs, in that case o7 you're fucked.
IIRC none of the installments since plus, (7, Zero, F, Delta) were released with subs on the JP dvds or blurays.
I guess this continues to give fansubbers something to do.
Supposedly there's more to it than just HG though, Big West, the main company involved in productions beyond the original, puts their thumb on the scale pretty hard and won't deal with HG at all.
Justin Sevakis, a ANN writer and 1 man (I think) BD authoring house had this to say on it:
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https://twitter.com/worldofcrap/status/1147378097034973184