It's very hard to read the screen captures, but I believe one gives an FTTC estimate of 10.9/1 Mbit/s and the other 4/0.9 Mbit/s. These are, of course, only estimates, and FTTC may fail to work reliably on both of these lines due to the low upstream speed.
I'm not clear what your point is. Three premises do not make a compelling case for expensive technical solutions of the magnitude of installing around 2 km of new underground fibre. Even if all three of you took up 330/30 Mbit/s FTTP, the wholesale revenue on those three ports would be less than £1500 per annum before VAT, and the install costs are going to be way more than ten times that.
BDUK aims to use EU State Aid to improve superfast coverage by contributing towards the cost of roll-out in locations where the economic viability on a purely commercial basis is marginal to mildly negative. As can be seen by the superfast target being below 100%, BDUK never aimed to provide fibre based superfast to every home and business.
There are plenty of city centre business district locations where businesses cannot get FTTC or FTTP. Openreach excluded some cabinets in these areas from the commercial roll-out. Some have argued this was Openreach protecting their revenue for expensive point-to-point circuits such as leased lines, though a slightly more charitable explanation is that medium to large sized businesses need a handful of extremely fast connections, not a larger number of merely superfast connections. BDUK changes nothing in these areas, as there's already 95%+ superfast coverage in the area as a whole.
If you and the two other premises can get together a joint business case for faster broadband, why not investigate installing a shared 5 GHz wireless link that connects to an FTTC line close to the cabinet?