Carmin Ronin and smokescreen

[Kogan Style]

Wielding the hammer of the ISC, I unleash a Mighty Thread BUMP!

Re-reading the card - specifically the last sentence "Furthermore, no opposing fighter can engage with allied troops standing fully within the area" I think clarification needs to be made to state whether the Ronin is within the area of effect of the smokescreen (since it says the edge of the base, you could argue anything within the base is not covered by the smokescreen i.e. we have a doughnut shaped cloud of smoke!!)

The problem as it stands is that the Ronin can be struck in melee if its engaged when it releases the smoke, BUT he can also be charged, since charging doesn't need LoS and if you are touching his base (which you need to, to do the melee strike) you can by-pass the smokescreen. Is this how it was intended?