I totally understand that if you install a single slot, low profile PCIe graphics card, it can't dissipate the heat that easily anymore as it takes up the whole slot, but with only a really small PCIe OcuLink card that isn't an issue (which I also see in the measurements). But by minimizing the default max boost clock due to only having access to the Silent and Balanced Mode PowerLimit profiles, you really hurt single core performance and that's a shame.
Ideally, if you go for longevity, I would suggest to keep the Performance Mode PowerLimit profile selectable in every situation and advise users to set the TjMax to 78 (as suggested by this excellent article:
Minisforum MS-A2 9955HX temperature fix - ETCwiki). That way, you keep the temperates low (max 81c) and it only impacts performance by around 5%, 'cause it can still boost half of the cores to 5.4GHz.