If you don’t sink the UK fleet, it can hide in SZ 109 with more stuff (and a buy) so that its out of range of the slower air. You can’t do the standard opener and this.
Once you get your air down south, then it has to fly back the other direction (probably without attacking because of the geometry), Germany typically uses all of its air together to create threat (the lightsaber…), so that’s not happening and Russia can stack.
You also can’t use the 1 Italian transport to move Germany men and Italian ones, its pretty high demand capacity since you need it to hit Greece, Syria, malta, Cyprus, Gibraltar, Alexandria, etc.
The combination of those two things means that UK has a somewhat useful navy, though it takes time for it to pressure Germany, and also that you’re not taking Moscow G5-6. All in return for breaking integrity and taking a territory worth 2. The UK empire falls apart more readily when japan can attack from behind and take all the land from the sea, but if Japan is headed that way anyways, it doesn’t need to be combined with this plan, that’s optional.
This idea pressures UK in a less direct way than SL where they have to spend their money to protect London, and it puts less pressure on Russia, so its a fun plan (like taking the germans to south Africa). Maybe give it a try next game when im stuck playing axis.