How much is too much - toys for Lucia 40

We are chartering a cat for the first time, after several trips on monohulls.
There are 8 of us on a Lucia 40. Was planning on renting 2 kayaks and 2 SUPs. Charter company is recommending that we just take 1 of each due to space.
We simply aren't going to be sailing much. Are we silly to cram 2 + 2 on deck?

thanks

Having sailed several Lucia's, I would follow the recommendation of the charter company.