Alas, not with underfloor entrances, despite many peoples claims.
I think the logic works something like this.... I have a strong colony on an underfloor entrances that isn't getting bothered by wasps, ergo the underfloor entrance is the wasp deterrent.
Nope, it's having a strong colony. If you have a weak colony on an underfloor entrances they can still be decimated by wasps, assuming the wasps find them.....which isn't always the case. You can get a weak colony not even bothered by wasps because easier forage is available for the wasps. It's complex and there are more factors involved than many suspect.
I've seen it happen in weak Langstroths with narrower underfloor entrances than the ones' you've made,....I'd make some of Steve's tunnel entrances to slip inside just in case...or some like those cable trunk ones you kindly fitted to my Nuc.
I like the simplicity of the tunnel entrance as it can be slid in when required and narrowed down as required with extra shims of wood. See Steve's pictures below.