Your incredibly effusive praise for them is duly noted, however 'bombproof' doesn't apply to everyone - there will be many LLU customers served by all suppliers reliant on a single piece of fibre.
Neither does your claim about latency or quality of service apply to everyone.
However I'm not going to go further into that one. They do their best but, as with everyone else, only have so much cash to spend. They've some great guys working for them, I know a couple, but no one size fits all.
Building better networks, not just faster ones.