I agree with your analogy BE, but there is no way ISP's are going to tailor individuals lines. The time and effort (manpower) it would take, wouldn't be cost-effective IMO.
I think it will be as it is now on Copper Products. There will be various packages of 'up to' and the EU will make the decision as to what suits best.
Who knows ?? With SLU in place, a wider choice of Fibre ISP could be on the horizon, and with that 'tailoring' may be the USP of ISP's ?? Whoever dreamt up TLA's needs a kick UTA !!