Family of the groom issues

Hi WWers,

We’ve been engaged for 9 mths & are a few weeks out from our wedding & pretty excited. My (bride) family checks in regularly, offering guidance, support and help for the wedding in terms of duties on the day. All are flying from interstate.

My fiancées (groom) family has shown no interest beyond RSVP (all very late at responding) & grumble about cost of accommodation- they only live an hour away & don’t need to stay. His parents very disinterested and change subject when we bring it up. His siblings - no calls or offers to help, decline to help in v small ways when we requested it.
We have our adult children giving family toasts. My father is not giving a toast.

FH is nervous about his father possibly wanting to give a wedding toast (not yet offered to) as he publicly insulted FH in front of entire family at FH recent big birthday. No nice words just a one line insult about his behaviour as a child. That man is NOT getting the mic. His sister wants to ensure the father gets to toast but we’ve been clear with her we only want children to toast. She keeps pushing to get her wish.
How do we tread here without creating mega-drama?